You use a mattress every night for 7 to 10 years, so picking one from a photo is a gamble. Sweet Home Furniture started in 1996 selling orthopedic mattresses door to door, and this is how we still explain how to choose a mattress on the showroom floor: start with how you sleep, narrow the firmness, pick a type, size it to your room, then test your finalists in person.
Step 1: Start with your sleep position
Your sleep position decides how much a mattress needs to cushion versus support. Think about the position you wake up in, not the one you fall asleep in.
- Side sleepers: your shoulder and hip carry most of your weight. You need a surface that lets them sink in a little so your spine stays straight. Most side sleepers do best on soft to medium (about 3 to 6 on a 10-point scale).
- Back sleepers: you need support under the lower back so it does not sag or arch. Medium to medium-firm (about 5 to 7) works for most people.
- Stomach sleepers: a soft bed lets the hips sink and bends the lower back. Firmer surfaces (about 6 to 8) keep you flatter.
- Combination sleepers: if you change positions all night, pick a medium feel with some bounce so turning over takes less effort.
Step 2: Narrow the firmness
Firmness is personal, and labels are not standardized. One company's "firm" can feel like another's "medium." Use the numbers above as a starting range, then adjust for body weight:
- Under about 130 lbs: mattresses often feel firmer to you than the label says. Try one step softer.
- About 130 to 230 lbs: the labels are usually a fair guide.
- Over about 230 lbs: you compress the comfort layers more, so a bed can feel softer and wear faster. Look at firmer models with thicker support cores, often 12 inches or more total height.
Couples with different needs usually land on a medium or medium-firm compromise. Remember that firmness is feel; support is whether your spine stays aligned.
Step 3: Pick a mattress type
Innerspring
A coil core with a thinner comfort layer on top. Innersprings feel bouncy and familiar, sleep cool because air moves through the coils, and are often the most budget friendly. The trade-off: more motion transfer to a partner, and thin tops can develop body impressions sooner.
Hybrid
A pocketed coil core topped with several inches of foam or latex. Hybrids aim for the best of both: bounce and airflow from the coils, pressure relief from the foam. Individually wrapped coils cut down motion transfer.
Memory foam
Foam that softens with body heat and contours closely. It is great for pressure relief on shoulders and hips and for isolating motion when a partner gets up. Some people feel "stuck" in it, and it can hold heat, though many newer foams use gel or open-cell designs.
Latex
Springier and more responsive than memory foam, with good durability. Natural latex is naturally breathable. It usually sits at the higher end of the market, and it is a good fit if you want contouring without the slow sink of memory foam.
Step 4: Choose the right size for your room
Standard US mattress sizes:
- Twin: 38 x 75 in. Kids, bunk beds, small guest rooms.
- Twin XL: 38 x 80 in. Taller teens.
- Full: 54 x 75 in. One adult, or a guest room.
- Queen: 60 x 80 in. The most popular size for couples and master bedrooms.
- King: 76 x 80 in. Couples who want space, or families with kids and pets in the bed.
- California King: 72 x 84 in. Narrower but longer, for tall sleepers.
A simple rule: leave at least 24 inches, and ideally 30 to 36 inches, of walking space on each side and at the foot of the bed. In practice, a queen fits comfortably in a room around 10 x 10 feet, and a king works best in a room around 12 x 12 feet or larger. The frame adds a few inches, so measure first. If you are replacing the whole room, see our bedroom sets and beds so the frame and mattress match.
Step 5: Test it in the store the right way
Searching "mattress store near me" gets you to a showroom. What you do there decides whether you go home with the right bed.
- Spend 10 minutes or more on each finalist. Your body needs time to settle. First impressions in the first minute are mostly about the top layer.
- Bring your own pillow. Pillow height changes how the mattress feels under your shoulders and neck.
- Lie in your real sleep position. Then roll over twice and notice how much effort it takes.
- Test with your partner. Have one person roll over while the other lies still to check motion transfer.
- Sit on the edge. Edge support matters if you sit on the side of the bed to get dressed or if you share a smaller size.
Narrow it to two or three, then compare them back to back.
Step 6: Do not forget the foundation
A good mattress on a bad base wears out early and can void coverage. Check what your mattress needs:
- Box spring: traditional for many innerspring beds on a standard metal frame.
- Foundation: a firm, flat base for foam and hybrid mattresses.
- Platform bed: slats or a solid deck, no box spring needed if slats are about 3 inches apart or closer.
- Adjustable base: works with most foam, latex and many hybrid models; check before you buy.
Watch the height, too: a thick mattress on a tall box spring can sit 30 inches off the floor. A low-profile foundation fixes that. Browse mattresses with bases if you want the pair matched from the start.
When to replace your mattress
Most mattresses last about 7 to 10 years. Replace yours sooner if you notice:
- A visible sag or body impression deeper than about 1.5 inches.
- Springs you can feel, or new squeaks.
- Waking up stiff or sore, then feeling better after a few minutes.
Want to spread out the cost? We offer flexible financing, including no-credit-needed lease-to-own options. Ask our team or apply online for current programs.
Try them in person in Framingham or Saugus
The fastest way to choose is to lie down on several mattresses back to back. Bring your pillow and give yourself 30 to 45 minutes. Our team speaks English, Portuguese and Spanish and can walk you through our mattress collection. Visit our Framingham showroom or our Saugus showroom at Square One Mall, open Monday to Saturday 10 am to 8 pm (open 7 days, see the store page for Sunday hours). Questions before you come in? Call (508) 872-4100.
Frequently asked questions
What firmness is best for back pain?
Many people with lower back pain do well on a medium-firm mattress, roughly 5 to 7 on a 10-point scale. It supports the lower back without pushing the hips and shoulders out of line. Test a few levels in person and notice how your lower back feels after 10 minutes.
Is a hybrid better than memory foam?
Neither is better for everyone. Hybrids have a coil core, so they bounce more, sleep cooler and make it easier to change positions. Memory foam isolates motion and contours closely, which side sleepers and couples often like. Hot sleepers usually lean hybrid.
How long should I test a mattress in the store?
Plan on at least 10 to 15 minutes on each finalist. Lie in the position you actually sleep in, bring your own pillow, and roll over a few times. If you share the bed, test it together.
Do I need a box spring with a new mattress?
It depends on the bed frame. Platform beds and slatted frames with slats 3 inches apart or closer usually need no box spring. Many foam and hybrid mattresses call for a solid or closely slatted foundation instead of a traditional box spring. Check the mattress requirements before you buy, and ask about a mattress and base together.
How often should a mattress be replaced?
Most mattresses last about 7 to 10 years, depending on materials, body weight and care. Replace it sooner if you see sagging deeper than about 1.5 inches, feel springs, or wake up stiff and sleep better on other beds.