Best for
- Lightweight and average-weight side sleepers.
- Couples who prioritize low partner disturbance.
- Sleepers who prefer a plush, contouring foam feel.
Review
SweetNight Luna Mattress Review
Overall rating
7.4
Mattress typeAll-foam mattress
FirmnessPlush 4/10
Best forLightweight and average-weight side sleepers.
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Pick one or more traits above and we will show the strengths and watch-outs that matter for this mattress.
What supports this
Watch-outs
Bottom line
Quick verdict
Skip if
- You are a higher-weight back or stomach sleeper.
- You need a rigid sitting edge.
- You need especially strong trial or warranty protection.
Bottom line
Luna is best for lightweight and average-weight side sleepers who want a plush surface, along with couples prioritizing motion control. Back sleepers can use it at lighter weights; stomach sleepers and bodies above 230 pounds need more pelvic resistance. The 10-inch and 12-inch configurations can feel different, so height should be treated as part of the fit decision.
Performance
How it actually performs
What this score means
What supports this
Watch-outs
How we reached it
- Side and back maps were predominantly blue and green for lighter testers.
- Higher weights reduce the support margin beneath pressure points.
Side and back pressure maps were predominantly blue and green for lighter testers, showing low concentration through the shoulders, hips, and lumbar area. The 4/10 gel-foam surface contours readily, but higher weight reduces the support margin beneath those pressure points.
- Lightweight side sleepers can remain aligned while receiving deep contour.
- Average- and higher-weight stomach sleepers can hammock through the midsection.
Lightweight side sleepers remained aligned while receiving deep contour, but the 4/10 firmness allowed progressively more pelvic travel as body weight rose. That makes the dense base most reliable for distributed side-sleeping weight rather than heavier stomach sleeping.
- Water showed only minor ripples and the stationary tester felt no significant motion.
- Large movement near a compressed edge can remain noticeable.
Water-glass checks showed only minor ripples and the stationary tester felt no significant motion when a partner moved. The continuous all-foam stack absorbs movement without a spring core to propagate vibration across the mattress.
- The surface remained near neutral during a 20-minute contact check.
- Plush contour still creates more heat-trapping contact than coils.
The surface remained near neutral through a 20-minute contact check. Gel memory foam, ventilated bamboo-charcoal foam, and the knit cover helped control short-term buildup, though the plush contour creates more body contact than a coil mattress.
- The edge remained secure under lighter lying load.
- Sitting produced noticeable sink and higher weights will compress it further.
The edge remained secure under lighter lying load, but seated testing produced noticeable sink. High-density foam restored its shape after loading, yet the all-foam design lacks the dedicated perimeter reinforcement that makes a sitting edge more rigid.
- Most turns did not create a persistent stuck sensation.
- Deep contour remains less effortless than a firmer hybrid or latex mattress.
Full recovery took 1.18–1.22 seconds after loading, quicker than deeply slow memory foam. The transition layer prevented a persistent stuck sensation on most turns, although the plush contour still takes more effort to move across than a firmer hybrid or latex surface.
- The surface restored shape after short-term loading.
- Lasting impressions and edge softening are the principal long-term risks.
The surface restored shape after short-term loading, and the dense base foam supplies the main structure. Plush comfort layers take deeper repeated compression, so lasting impressions and edge softening are more relevant risks than on a firmer, coil-supported mattress.
- Trial, return, warranty, and delivery terms depend on the seller and listing.
Confirm the written purchase protections attached to the specific listing before buying.
Fit by sleeper type
Will it work for your body and position?
SleeperUnder 130 lb130-230 lbOver 230 lb
Side
Under 130 lb
130-230 lb
Over 230 lb
Back
Under 130 lb
130-230 lb
Over 230 lb
Stomach
Under 130 lb
130-230 lb
Over 230 lb
Combination
Under 130 lb
130-230 lb
Over 230 lb
Owner feedback
What buyers report after living with it
Sources reviewed
SweetNight Luna comparison and current catalog
ContextSweetNight's comparison page documents Luna's 10- and 12-inch range, bamboo-charcoal foam, gel foam, plush feel, and policy context.
Sources reviewed
SweetNight Luna comparison and current catalog
SweetNight's comparison page documents Luna's 10- and 12-inch range, bamboo-charcoal foam, gel foam, plush feel, and policy context.
- SweetNight mattress comparison
Configuration and material context.
- SweetNight current catalog
Product details checked in 2026.
What to know before buying
Fine Print Check
Fine print
Policy source
Policy details that can change the decision
AreaWhat SweetNight saysWhy it matters
Purchase terms
Confirm the trial, return, delivery, and warranty terms with the seller before purchase.
Coverage and eligibility can vary by seller, listing, and purchase channel.
Model checked
Reviewed model details
Model checkedJul 16, 2026Discontinued
Configuration testedSweetNight Luna · 10-inch default configuration · Plush 4/10 · all-foam
The latest model check found that the brand no longer sells this model new.
Inside the mattress
Construction & materials
Breathable knit coverSoft knit textile · Top
Provides a moisture-managing contact surface. As the surface textile, it chiefly affects the initial hand feel, moisture movement, and how readily heat leaves the sleeper; it supplies little of the mattress's deep support.
Why it matters: Across the SweetNight Luna Mattress, the surface remained near neutral during a 20-minute contact check. Treat the cover as one part of thermal comfort rather than proof that the mattress will stay cool for every sleeper.
Gel memory foamGel-infused viscoelastic polyurethane foam · Comfort
Creates plush contour and pressure distribution. Memory foam conforms under sustained load, spreading pressure over a larger contact area. Its thickness and position influence contour depth and how quickly the sleeper reaches firmer layers below.
Why it matters: For the SweetNight Luna Mattress as a whole, pressure relief was assessed at 8.5/10 (Strong). This is one of the layers most responsible for shoulder and hip cushioning; sleepers who dislike a close contour should compare it with the mattress’s recorded sinkage and recovery.
Ventilated bamboo-charcoal foamCharcoal-infused polyurethane foam · Transition
3 inches documented for the Luna family
Adds ventilation, moisture adsorption, and transition support. This layer buffers the sleeper from the firmer support core and controls how gradually resistance increases as the body sinks deeper.
Why it matters: In the finished SweetNight Luna Mattress, lightweight side sleepers can remain aligned while receiving deep contour. It becomes especially important for higher-weight sleepers and back or stomach sleepers, who engage more of the mattress depth than lighter sleepers.
High-density support foamHigh-density polyurethane foam · Core
Supplies primary structural support. This foundation resists deep compression and keeps the comfort layers working on a stable plane; it is not intended to provide the mattress’s initial plushness.
Why it matters: Across the SweetNight Luna Mattress, durability was assessed at 6.5/10 (Mixed). Its thickness and material quality are more relevant to long-term shape retention and bottoming-out resistance than to surface softness.
Height10 inches reviewed; a 12-inch version was also documented
Firmness optionsPlush 4/10
Available sizes
CertificationsCertiPUR-US certified foams in the reviewed product record