- Is this mattress good for side sleepers?
- Mostly no. The firm foam does not cushion shoulders and hips enough for many side sleepers, especially lighter ones. Side sleepers usually do better on a medium or plush model.
- Does it need a box spring?
- No. It works on a platform bed, slatted frame or adjustable base. A box spring is optional, and a solid or closely slatted base gives the foam the best support.
- How long does it take to expand?
- Expect most of the expansion within a day and full loft within about 48 to 72 hours. Sleeping on it sooner is fine, but it may feel firmer until it settles.
- Will it sleep hot?
- It runs cooler than basic memory foam thanks to the cooling cover, but an all-foam bed still traps more heat than a hybrid with coils. Hot sleepers should pair it with breathable bedding.
- Is it a good fit for couples?
- Yes for motion isolation, since foam absorbs movement well. Heavier couples should note the softer edges and consider a hybrid if they often sit on the side of the bed.
- Where is the Serta 12-in Firm California King Cooling Mattress cheapest?
- At Lowe's, for $798.24, as of our latest check.