by Amerisleep Mattress Dimensions 2026: Sizes + Heights for All AS Models
Every Amerisleep mattress size from Twin to Split King, exact width, length, and height by model. Room requirements, weight per size, and a full sizing guide so you order the right bed the first time.
The Amerisleep AS3 Queen measures 60" wide × 80" long × 12" tall. Amerisleep ships all seven standard US sizes, Twin through Split King, with the AS3 all-foam at 12 inches and AS6 Black Series at 14 inches. All sizes fit standard bed frames and sheets with no specialty sizing required.
Amerisleep AS3
9.1/10
All-foam Bio-Pur
12" height
Medium 5/10
365-night trial
20-yr warranty
- 12" profile fits standard frames and sheets without modification
- HIVE 5-zone Bio-Pur construction for balanced support across all sizes
- Available in all seven standard US sizes from Twin to Split King
- CertiPUR-US certified, made in the USA, free shipping
- Edges softer than a coil hybrid at any size
- Sleepers over 230 lb may prefer the AS3 Hybrid, which adds a coil base
The AS3 is the right starting point for most buyers: medium feel, standard 12-inch height that works with any frame or sheets, and available in every size including Split King for adjustable base setups. At $1,149 queen, it is the best value in the Amerisleep lineup.
TL;DR: Amerisleep Dimensions at a Glance
Amerisleep ships all standard US mattress sizes. Queen (60"×80") is the most popular, fits most master bedrooms without issues. AS4 is no longer sold and the AS1 has only a few sizes left on amerisleep.com; the AS3 all-foam is 12 inches tall. The AS3 all-foam Queen is the best-selling size/model combination and weighs 88 lbs, per Amerisleep. No specialty sizes needed: Amerisleep fits standard frames, bases, and sheets. Split King = two 38"×80" Twin XL units, ideal for adjustable bases.
What this guide covers
Amerisleep Mattress Dimensions: Full Size Chart
Amerisleep produces all seven standard US mattress sizes. Every size uses identical internal layer construction, the only variable is the cut dimensions of the foam or hybrid layers, which stay consistent with ISPA (International Sleep Products Association) standards.
| Size | Width | Length | Best for |
|---|---|---|---|
| Twin | 38" | 75" | Kids, single adults in tight rooms |
| Twin XL | 38" | 80" | Tall singles, college dorms, half of Split King |
| Full | 54" | 75" | Single adult who wants more width |
| Queen | 60" | 80" | Couples, master bedrooms; best-seller |
| King | 76" | 80" | Couples who need max width, large rooms |
| California King | 72" | 84" | Tall sleepers 6'2"+, long narrow rooms |
| Split King | 2 × 38" | 80" each | Couples with adjustable bases, different firmness |
One practical note on Twin vs Full: the Full adds 16 inches of width over a Twin but the same 75-inch length. For a single adult taller than 6 feet, the Twin XL (80 inches) is the better choice over a standard Twin, the extra 5 inches of length matters more than the width difference when sleeping solo. For a deeper look at how these models perform, the Amerisleep mattress reviews cover each AS model from AS1 to AS5.
Heights by Model: AS1 Through AS5
Height (also called profile or thickness) varies by Amerisleep model, not by size. Ordering a Queen AS3 and a King AS3 gets you the same height, only the footprint changes. The table below shows the profile for every current and recent Amerisleep model.
| Model | Height | Type | Notes |
|---|---|---|---|
| AS1 | 10" | All-foam | Retired model; historical reference only |
| AS2 | 12" | All-foam | Medium-firm, standard height |
| AS3 (all-foam) | 12" | All-foam | Best-seller; 5-zone Bio-Pur support |
| AS3 (Hybrid) | 12" | Hybrid | Same height as the all-foam AS3 |
| AS4 | 12" | All-foam | Discontinued; its page now redirects to the AS3 |
| AS5 (all-foam) | 14" | All-foam | Softest all-foam model |
| AS5 Hybrid / AS6 | 14" | Hybrid | Tallest Amerisleep mattresses |
The AS4 is listed above for reference but is no longer sold by Amerisleep. Amerisleep now redirects the AS4 page to the AS3; for a softer all-foam option, compare the AS5. For an in-depth look at the full range, the AS3 review covers the all-foam and hybrid variants side by side. The AS5 review covers the 14-inch AS5 in depth.
Shop Amerisleep AS3 all-foam: queen $1,149 sale ($1,749 regular) with code BFCM ($600 off the AS2, AS3, AS5 and Organica through December 9). Check hybrid pricing separately.
Room Requirements by Mattress Size
A mattress fits in any room larger than its footprint, but comfortable bedroom function requires clearance for walking, furniture, and door swing. The figures below represent practical minimums, not absolute minimums. A mattress that technically fits in a 9-foot room is not the same as a mattress that fits livably.
| Size | Minimum room size | Ideal room size | Notes |
|---|---|---|---|
| Twin | 7' × 10' | 9' × 10' | Check clearance for walking, furniture and door swing |
| Twin XL | 7' × 10' | 9' × 11' | Same width, 5" longer than Twin |
| Full | 9' × 10' | 10' × 12' | Minimum tight; ideal leaves room for dresser |
| Queen | 10' × 11' | 12' × 12' | Most master bedrooms qualify; 12'×12' is comfortable |
| King | 12' × 14' | 13' × 15' | Requires larger room; check dresser clearance |
| California King | 12' × 14' | 13' × 15' | 4" narrower than King, 4" longer; fits long narrow rooms |
Weight Per Size: Amerisleep Mattresses
Mattress weight affects delivery logistics, setup, and how often you can rotate or reposition the bed. Amerisleep delivers all mattresses compressed and rolled in a box. The figures below are the weights Amerisleep lists for the AS3 all-foam model. Hybrid models run roughly 8–11 lbs heavier than the all-foam equivalent, depending on size, due to the steel coil layer.
| Size | AS3 all-foam weight (per Amerisleep) | Notes |
|---|---|---|
| Twin | 53 lbs | Manageable solo; easy to move |
| Twin XL | 57 lbs | Slightly heavier than Twin |
| Full | 73 lbs | One person can manage with care |
| Queen | 88 lbs | Recommended: two people to position |
| King | 111 lbs | Two people required; heavy to rotate |
| California King | 110 lbs | Similar to King; two people required |
Which Size for Which Sleeper
The right Amerisleep size depends on three variables: how many people are sleeping, how tall those people are, and how much room the bedroom provides. The grid below maps common sleeper profiles to the correct size.
Solo sleeper, standard height
Best size: Full or Queen
A Full (54"×75") gives a single adult plenty of width without using Queen-level room space. If the bedroom comfortably holds a Queen, that is the better long-term choice.
Solo sleeper, 6' or taller
Best size: Twin XL or Queen
At 80" length, Twin XL and Queen give a 6'2" sleeper (74") a six-inch buffer from the foot. A standard Twin or Full at 75" would put tall sleepers right at the edge.
Couple, average height
Best size: Queen
At 60" wide, a Queen gives each partner 30 inches of sleeping space. Functional for couples who do not need maximum separation. Works in most master bedrooms (10'×11' minimum).
Couple, one or both tall or large
Best size: King
King at 76" wide gives each partner 38 inches, the equivalent of a Twin each. Requires a 12'×14' room minimum. For tall couples, King at 80" length covers most heights.
Couple, one or both over 6'2"
Best size: California King
Cal King's 84-inch length covers sleepers up to 6'8" with margin. Trade-off: 4 inches narrower than King (72" vs 76"). Best when at least one partner genuinely needs the extra length.
Couple with adjustable base
Best size: Split King
Split King = two Twin XLs (38"×80" each) on a dual-zone adjustable base. Each partner controls head and foot elevation independently. Requires a Split King-compatible base.
Child or teenager
Best size: Twin or Twin XL
Twin (38"×75") works for children through early teen years. If the child is likely to grow past 6 feet, move directly to Twin XL. Both fit in a 7'×10' minimum room.
Guest room
Best size: Queen or Full
Queen handles any guest configuration, solo, couple, parent with child. Full works if room size is the constraint. Both are readily available in Amerisleep's current lineup.
Split King: What It Is and Who Needs It
Amerisleep's Split King is not a single mattress. It is two Twin XL mattresses (each 38"×80") sold as a pair and designed to sit side by side on a dual-zone adjustable base. Total footprint is 76"×80", identical to a standard King.
The reason couples choose Split King over King: each side of the bed operates independently on an adjustable base. One partner can elevate the head of their mattress while the other sleeps flat. Split King also means each partner can choose a different Amerisleep model, AS3 on one side, AS5 on the other, with no compromise on firmness.
Split King requires two Twin XL fitted sheets, plus a King flat sheet and comforter. Use a King flat sheet and comforter to cover both sides; the top bedding spans the full 76-inch width. Some couples also add a split King-specific mattress topper connector strap to reduce the center gap between the two halves.
Bedding Compatibility
One of Amerisleep's practical advantages: all sizes fit standard US bedding without specialty sizing. No brand-specific sheets or custom comforters are required; choose fitted-sheet pocket depth for the combined thickness of the mattress and any topper, regardless of adjustable-base height.
| Amerisleep size | Sheet size needed | Deep-pocket needed? |
|---|---|---|
| Twin | Twin sheets | Not typically |
| Twin XL | Twin XL sheets | Not typically |
| Full | Full sheets | Not typically |
| Queen | Queen sheets | Not for AS1–AS3; check for AS5 |
| King | King sheets | Recommended for 14" models |
| California King | Cal King sheets | Recommended for 14" models |
| Split King | King flat + 2×Twin XL fitted | Check for AS5 models |
Standard fitted sheets fit mattresses up to about 14 inches deep. The 14-inch AS5, AS5 Hybrid and AS6 sit at the edge of that range. Deep-pocket fitted sheets (18–21" pocket depth) ensure a secure fit without the sheet pulling off at corners. All other Amerisleep models (10–12") work fine with standard sheets.
Frequently Asked Questions
What are the dimensions of an Amerisleep Queen mattress?
An Amerisleep Queen mattress measures 60 inches wide by 80 inches long. Height varies by model: the AS3 all-foam is 12 inches tall, the AS3 Hybrid is also 12 inches, and the AS5 Hybrid is 14 inches. The Queen footprint is standard across all Amerisleep models and fits any Queen bed frame without modification.
How tall is the Amerisleep AS3?
The AS3 comes in two variants. The AS3 all-foam is 12 inches tall. The AS3 Hybrid is also 12 inches tall; its pocketed coils replace the foam base without changing the height. Both are available in all standard sizes from Twin to California King.
What is the difference between a King and California King at Amerisleep?
King (76"×80") is 4 inches wider but 4 inches shorter than California King (72"×84"). Both need roughly the same room footprint (12'×14' minimum). Choose King if maximum width matters for couples. Choose California King if one or both sleepers are over 6'2" and need the extra length. Bedding is not interchangeable, King and Cal King require different sheets.
Does Amerisleep make a Split King?
Yes. Amerisleep's Split King is two Twin XL mattresses (38"×80" each) placed side by side on a dual-zone adjustable base. Total footprint equals a standard King (76"×80"). Couples can choose different Amerisleep models for each half, different firmness levels on each side. A Split King-compatible adjustable base is required; a standard King base will not work with this configuration.
How does Amerisleep AS5 height compare to other models?
The AS5, AS5 Hybrid and AS6 Black Series are all 14 inches tall, making them the tallest mattresses in the Amerisleep lineup. By comparison, the AS1 is 10 inches, and the AS2, AS3 and AS3 Hybrid are 12 inches. The 4-inch difference between the AS1 and the 14-inch models is meaningful for bed height, sheet depth, and the feel of getting in and out of bed.
What room size do I need for a Queen Amerisleep mattress?
A Queen Amerisleep mattress (60"×80") requires a minimum room of approximately 10 feet by 11 feet for basic clearance on all sides. An ideal room size is 12 feet by 12 feet, which gives comfortable walking space and room for nightstands. Always account for the bed frame dimensions, which add 2–4 inches to the mattress footprint.
How much does an Amerisleep Queen mattress weigh?
An Amerisleep AS3 all-foam Queen weighs 88 pounds, according to Amerisleep. The AS3 Hybrid Queen weighs 96 pounds due to the steel coil support layer, and a King AS5 Hybrid weighs 143 pounds. For any size at Queen or above, two people are recommended for unboxing and positioning. Amerisleep delivers all mattresses compressed in a roll-pack box.
Do Amerisleep mattresses fit standard bed frames and sheets?
Yes. All Amerisleep mattress sizes conform to ISPA standard US dimensions, so they fit any standard bed frame, platform base, or adjustable base in the corresponding size. Standard fitted sheets work for the 10- to 12-inch models. The 14-inch AS5, AS5 Hybrid and AS6 may benefit from deep-pocket fitted sheets (18–21 inch pocket depth).
Is a Twin XL long enough for a tall person?
A Twin XL is 38 inches wide and 80 inches long. A sleeper who is 6'2" (74 inches) has 6 inches of clearance from their feet to the end of the mattress. That is sufficient for most sleepers in the 6'–6'4" range. Sleepers over 6'5" should consider a California King (84 inches) for comfortable clearance.
Verdict
Amerisleep covers every standard US size without specialty sizing requirements.
For most buyers, the Queen AS3 is the right call: it fits any standard master bedroom with 10'×11' or more of space, works with standard sheets, and ships in a roll-pack box that goes through any standard doorway. The 12-inch height is tall enough to feel premium without creating sheet or bed height issues.
Taller sleepers should choose Twin XL, Queen, King, or California King, never a standard Twin or Full, which max out at 75 inches. The California King's 84-inch length covers essentially all sleepers; the trade-off is 4 fewer inches of width.
The 14-inch models (AS5, AS5 Hybrid and AS6) are the configurations where you should verify sheet depth, base compatibility, and total bed height before ordering. At 14 inches on a 6-inch adjustable base, the sleeping surface sits roughly 20 inches from the floor, worth confirming against your specific frame setup.
If you are still deciding on the model alongside the size, the AS3 review and AS5 review compare the all-foam and hybrid builds in detail. The full Amerisleep model review covers all AS models with firmness, support, and durability data.
Amerisleep AS3
9.1/10
12-inch profile, Medium feel, HIVE 5-zone Bio-Pur construction, 365-night trial and 20-year warranty. Available in every size from Twin to Split King, fits standard frames and sheets. Best value in the Amerisleep lineup at $1,149 queen.