by Quick answer: A Queen is 60 inches wide by 80 long; a King is 76 by 80. The King gives each partner 16 more inches of shared width but costs more, needs a larger room, and uses bigger bedding. Both are the same length.
By the MattressNut editorial team · Updated June 2026
Queen vs King — The Short Answer
The two beds are the same length, so this is a width and budget decision. A Queen fits most bedrooms and most budgets, giving each partner about 30 inches. A King adds 16 inches of total width — close to a full extra person's worth of space — but asks for a bigger room and a higher spend.
What to Know
| Factor | Detail |
|---|---|
| Queen (60x80) | Fits rooms around 10x10 ft. Good for solo sleepers and most couples on a budget. |
| King (76x80) | Needs roughly 12x12 ft. Best for couples who want space, or who share with kids or pets. |
| Cost | Kings cost more for the mattress, frame, and bedding. Budget for the whole set, not just the mattress. |
Practical Tips
Measure your room first. If you can't leave at least two feet of walking space around a King, a Queen will feel better day to day. Light sleepers who wake when a partner moves often benefit from the King's extra width. Remember that King sheets, frames, and headboards all cost more, so price the full setup before deciding.
Our Recommendation
Whichever size fits your room, motion isolation and support do more for couples than width alone. A mattress that absorbs movement keeps one partner's tossing from waking the other. Saatva offers the Classic in both Queen and King, so you can match your room without giving up comfort.
See the Saatva Classic and its 365-night trial
The Bottom Line
Choose a Queen if your room or budget is tight, or if you sleep alone. Choose a King if you share the bed, want more elbow room, and have space to walk around it. Both give you the same 80 inches of length.
Bottom line: Go Queen to save space and money, King for couples who want more room to spread out.
Related: our full Saatva mattress review.