An honest, hands-on look at the Siena Memory Foam Mattress - who it suits, where it falls short, and whether the sub-$400 queen price holds up against premium memory foam beds.
The Siena Signature Memory Foam Mattress is a sister brand to Nectar and DreamCloud - three mattress labels owned by Resident Home - and it lives at the bottom of that lineup on price. A queen currently lists around $359 direct from Siena, often less during sales, which puts it in striking distance of basic Amazon foam beds while still carrying a 180-night trial and a 10-year warranty.
After unboxing two Sienas in our review lab and rotating testers across body types and sleeping positions, our short answer: the Siena is a genuinely good budget mattress for back and side sleepers under about 230 pounds. It's not the right pick for hot sleepers, heavier sleepers, or anyone who needs strong edge support - and you don't need to pretend otherwise to recommend it. Below is what we measured, what surprised us, and how it stacks up against the most common alternatives.
Pricing below reflects standard MSRP from siennasleep.com. Siena runs near-constant promotions - the queen has spent most of 2026 around $359, well under the $699 list. Always check the current sale price before buying.
Twin - 38" × 75" - list $499 (queen-equivalent kid/guest pick).
Twin XL - 38" × 80" - list $599.
Full - 54" × 75" - list $649.
Queen - 60" × 80" - list $699 (street price typically ~$359).
King - 76" × 80" - list $799.
California King - 72" × 84" - list $799.
The Siena is a 10-inch all-foam mattress with three functional layers under a knit cover:
All foams are CertiPUR-US certified, which means they're independently tested for VOC emissions, formaldehyde, and heavy metals - a meaningful baseline at this price.
Our testers landed at roughly 6.5/10 - a true medium-firm. It's not the soft, sink-in feel some people associate with memory foam; you get the contour without the quicksand. Lighter sleepers under ~130 lb may find it on the firm side.
Strong for the price, especially for side sleepers in the 130-200 lb range. The gel memory foam contours around the shoulder and hip without forcing the spine out of alignment. Above 230 lb, side sleepers may want a thicker hybrid.
One of the Siena's standout traits. Movement on one side of the bed dies before it crosses the midline - there are no springs to transfer energy, and the dense foam absorbs everything else. Couples sensitive to a partner getting up should put this near the top of the budget shortlist.
Average. The cooling cover and gel infusion keep it from running outright hot, but you're still sleeping on dense foam without airflow channels. If you currently overheat on memory foam, a hybrid bed (Helix Midnight, Nectar Premier Hybrid) is worth the upgrade.
Below average. The perimeter is the same all-foam build, with no reinforced rails. Sitting on the edge to put on shoes you'll feel the mattress compress noticeably; it doesn't materially shrink the usable surface for sleeping, but it's the Siena's weakest result.
Mild - present on day one, gone by day three with a window cracked. Below the level of an average bed-in-a-box; CertiPUR certification is doing visible work here.
Reasonable for the price tier - expect 6 to 8 years of useful life under average-weight sleepers, less for heavier use. The 10-year warranty covers manufacturing defects but not normal body impressions under 1.5 inches.
Because Siena and Nectar share a parent company, this is the comparison shoppers ask about most often.
Pick Siena if: You want the lowest price, your weight is roughly average, and you sleep on your back or side. The Siena's medium-firm feel suits back sleepers slightly better than the Nectar.
Pick Nectar if: You're a dedicated side sleeper, you weigh under 130 lb, or you want the longer 365-night trial and Forever Warranty. The Nectar Classic runs slightly softer (~6/10) and has a thicker comfort layer. Expect to pay $200-$400 more for the queen at sale price.
If you need a real mattress, not a Walmart roll-out, and you cannot or do not want to spend over $500 - the Siena is one of the few beds we'd actually point to. It punches above its price for back and side sleepers in the 130-230 lb range, isolates motion well, and ships with a returns and warranty story you can rely on. The compromises (heat, edge support, heavier-sleeper durability) are real but predictable, and they're the right compromises to make at this price.
For dedicated hot sleepers, heavier bodies, or anyone who wants premium-feel cooling and edge support, step up to a hybrid like the Helix Midnight or Nectar Premier Hybrid.
For most average-weight back sleepers, yes - the 6.5/10 firmness keeps the spine in neutral alignment and the memory foam contour relieves pressure at the lower back. Sleepers with chronic low-back pain who weigh over 230 lb will likely do better on a firmer hybrid; the Siena's foam-only build doesn't push back hard enough at higher weights.
Different bed for a different sleeper. The Siena is firmer and substantially cheaper; the Nectar is softer with a longer trial and lifetime warranty. Pick Siena if you sleep on your back or you want the lowest price; pick Nectar if you're a dedicated side sleeper or under 130 lb and want the cushier feel.
Plan on 6 to 8 years under average-weight sleepers. The 10-year warranty covers manufacturing defects and body impressions over 1.5 inches deep, but normal foam softening is excluded. Heavier sleepers (230+ lb) should expect closer to 5 years.
No. The Siena is designed for any solid or slatted platform with slats spaced no more than 3 inches apart. A box spring is not required and won't add support; a sturdy platform bed or bunkie board is fine.
It's average for memory foam - the gel infusion and cooling cover help, but it does not sleep as cool as a hybrid with coils. If you regularly overheat at night, look at a Nectar Premier Hybrid or Helix Midnight instead.
Siena mattresses are designed and assembled in the United States by Resident Home, the same parent company behind Nectar and DreamCloud. All foams are CertiPUR-US certified for low VOC emissions.
Most testers reach 90% of full height within 4 to 6 hours and full 10-inch height within 24 to 48 hours. Off-gassing odor is mild and dissipates within 2-3 days in a ventilated room.
Compare the Siena against other budget and premium memory foam mattresses we've tested.
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Banner Mattress EditorialThe Banner Mattress editorial team publishes independent mattress reviews, buying guides, and sleep-health advice. Since 2018 we've tested 1,000+ mattresses and 3,000+ pillows, sheets, and bedding accessories in our review lab - every recommendation is hands-on, never sourced from vendor talking points. Affiliate links may earn us a commission, but never change what we recommend.
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