by Helix Alternatives: Amerisleep AS3 and Saatva Classic Compared (2026)
What Helix is known for, and two mattresses that suit a different sleeper instead.
The Amerisleep AS3 is the alternative to Helix for most shoppers, and it comes with a 20-year warranty and free shipping and returns. It is a medium-feel all-foam bed built to balance support and softness across sleep positions, using plant-based Bio-Pur foam. If you want a spring feel instead of foam, the Saatva Classic is an innerspring mattress with three comfort levels, two heights, a 365-night home trial, a lifetime warranty, and free white-glove delivery with old-mattress removal.
Amerisleep AS3
A medium-feel all-foam bed that Amerisleep builds to balance support and softness for every sleep position.
Saatva Classic
- Three comfort levels let you pick the feel instead of accepting one firmness
- Two height options for a custom profile
- 365-night home trial is a full year to decide
- Lifetime warranty covers the mattress for as long as you own it
- Free white-glove delivery includes setup and removal of your old mattress
- Innerspring construction transfers more motion than an all-foam bed
- White-glove delivery is scheduled rather than shipped to your door
- Heavier build makes moving or rotating the mattress harder
The Saatva Classic suits sleepers who want a traditional spring feel with a choice of firmness rather than a single medium option. Its 365-night trial and lifetime warranty are longer than the AS3's 100-night trial and 20-year warranty, and the delivery service handles setup and old-mattress removal for you.
What Helix is known for
Helix positions itself as a lineup of mattresses rather than a single model, with different feels aimed at different sleepers. Shoppers who land on Helix are usually comparing a medium-feel foam bed against other bed-in-a-box options, and they want to know whether a different brand offers a similar feel with different materials, a different trial window, or a different construction.
That is the question this page answers. Below are two alternatives that each suit a different sleeper: a medium-feel all-foam bed and an innerspring mattress with three comfort levels.
Helix alternatives: key specs
| Spec | Amerisleep AS3 | Saatva Classic |
|---|---|---|
| Construction | All-foam (Bio-Pur, plant-based) | Innerspring |
| Feel | Medium | Plush Soft, Luxury Firm, or Firm |
| Height options | – | Two heights |
| Trial | 100 nights | 365 nights |
| Warranty | 20 years | Lifetime |
| Shipping | Free shipping and returns | Free white-glove delivery with old-mattress removal |
Construction and materials
The Amerisleep AS3 is an all-foam mattress built around Bio-Pur, a plant-based foam. Amerisleep describes the bed as a medium-feel option designed to balance support and softness for every sleep position, which makes it a direct answer for shoppers who liked the idea of a single medium bed rather than choosing between firmness levels.
The Saatva Classic takes the opposite approach. It is an innerspring mattress with three comfort levels (Plush Soft, Luxury Firm, Firm) and two height options. Rather than one feel, you pick the firmness that matches how you sleep, and the spring construction gives it a more traditional, responsive surface than foam.
Feel and firmness
The AS3 sits at a medium feel, which is the middle of the range and the most forgiving choice for sleepers who switch positions at night. It is firm enough to keep the hips from sinking too far and soft enough at the shoulders for side sleeping.
The Saatva Classic does not commit to one firmness. Plush Soft is the softest of the three, Luxury Firm is the middle option, and Firm is the most supportive. Shoppers who already know they want a firm surface can order a firmer option directly instead of hoping a medium bed works.
Pressure relief
Pressure relief is where foam and spring builds diverge most. The AS3's Bio-Pur foam contours at the shoulders and hips, which is what side sleepers and back sleepers usually need to avoid waking up with a sore hip or shoulder. Because the bed is built to balance support and softness, it aims to cushion the contact points without letting the midsection sag.
The Saatva Classic's pressure relief comes from its comfort layer above the innerspring core. Choosing a softer comfort level gives more surface give at the shoulders, while a firmer option keeps the sleeper on top of the mattress rather than in it. Heavier sleepers who find foam too conforming often prefer the spring support of an innerspring build.
Cooling
Foam mattresses retain heat differently than innerspring mattresses. The AS3 is an all-foam bed built with plant-based Bio-Pur foam, so if heat is your main complaint, weigh it against a spring build.
The Saatva Classic's innerspring construction has natural airflow through the coil layer. Sleepers who run warm and want airflow through the mattress core tend to prefer a spring build over a solid foam slab.
Motion isolation
Motion isolation is the strength of all-foam beds. The AS3 absorbs movement at the surface, so a partner climbing in or shifting position is less likely to travel across the mattress. Couples who are light sleepers usually find foam the quieter option.
The Saatva Classic, as an innerspring mattress, moves more when weight shifts. That responsiveness is a feature for sleepers who want to change positions easily, but it is a drawback for couples who wake when the other person moves. If motion isolation is your top priority, the AS3 is the better fit.
Trial period and warranty
The Amerisleep AS3 comes with a 100-night trial and a 20-year warranty. Shipping and returns are free, so trying the bed at home does not cost extra if it does not work out.
The Saatva Classic carries a 365-night home trial and a lifetime warranty. That is a full year to decide and coverage that lasts as long as you own the mattress. Delivery is free white-glove service, which includes setup and removal of your old mattress.
Price and value
We do not publish prices on this page because mattress pricing changes with sales and promotions. What you can compare directly is what comes with each bed: the AS3 includes free shipping, free returns, a 100-night trial, and a 20-year warranty. The Saatva Classic includes a 365-night trial, a lifetime warranty, and free white-glove delivery with old-mattress removal. The decision usually comes down to feel and trial length.
Who should buy each mattress
Buy the Amerisleep AS3 if: you want a medium-feel all-foam bed that balances support and softness across sleep positions, you share the bed and want the quieter surface, or you prefer plant-based foam over traditional memory foam. The 100-night trial and 20-year warranty cover the basics, and free shipping and returns remove the risk of buying direct.
Buy the Saatva Classic if: you want to choose your firmness instead of accepting one feel, you prefer a spring surface over foam, or you want the longest trial window and a lifetime warranty. The three comfort levels and two heights make it the more customizable option, and free white-glove delivery handles setup and old-mattress removal for you.
The Amerisleep AS3 is the alternative to Helix for most shoppers: a medium-feel all-foam bed with plant-based Bio-Pur foam, a 100-night trial, a 20-year warranty, and free shipping and returns. The Saatva Classic is the better fit for sleepers who want a spring feel and a choice of firmness, backed by a 365-night trial, a lifetime warranty, and free white-glove delivery with old-mattress removal. Side sleepers and couples who want the quieter surface should start with the AS3. Sleepers who want to pick their firmness or who prefer springs should look at the Saatva Classic.
Frequently asked questions
What is an alternative to Helix?
The Amerisleep AS3 is the alternative for most shoppers. It is a medium-feel all-foam mattress with a 100-night trial, a 20-year warranty, and free shipping and returns. Because pricing changes with promotions, check the current price on Amerisleep's site before you buy.
Is the Amerisleep AS3 or Saatva Classic better for side sleepers?
Side sleepers who want contouring foam usually prefer the AS3, because the medium feel and Bio-Pur foam cushion the shoulders and hips. Side sleepers who want to choose a softer surface can order the Saatva Classic in its softest comfort level.
Which sleeps cooler, an all-foam bed or an innerspring mattress?
Innerspring mattresses like the Saatva Classic have natural airflow through the coil layer. If airflow through the mattress core is your priority, a spring build is the more direct answer.
Does the Saatva Classic come with delivery and setup?
Yes. Saatva includes free white-glove delivery, which covers in-home setup and removal of your old mattress. The AS3 ships free with free returns instead, so you set it up yourself after it arrives.
Can I try either mattress at home before committing?
Both come with a home trial. The Amerisleep AS3 has a 100-night trial, and the Saatva Classic has a 365-night home trial. Shipping and returns are free on the AS3, and white-glove delivery is free on the Saatva Classic.