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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want to upgrade the noise isolation of earbuds you already own with a body-heat memory foam tip, choose COMPLY 100; if you need a standalone reusable earplug for sleep, travel, concerts and focus work, choose SHANCHAHUA Reusable Sleep Noise-Canceling.
• COMPLY 100 — biggest strength: Comply True Memory Foam tips that warm up with body heat and expand into a personalized in-ear seal, which is exactly what improves passive noise isolation and bass on compatible IEMs.
• COMPLY 100 — biggest trade-off: It is not a product on its own. It is a replacement tip for select Etymotic, Westone, Klipsch, ISOtunes Pro and Jays earbuds, so you have to check compatibility before buying, and you need to already own the earphones.
• SHANCHAHUA Reusable Sleep Noise-Canceling — biggest strength: A self-contained reusable earplug with multi-layer sound insulation rated for 20–35dB reduction, four tip sizes (XS/S/M/L) and a mini storage box for sleep, travel, libraries and loud venues.
• SHANCHAHUA Reusable Sleep Noise-Canceling — biggest trade-off: It is a plug, not a listening device. It is designed to reduce noise and keep sound balanced, so it is not a substitute for earphones you want to play music through.
• Who each is for: COMPLY 100 is for people who already love their wired IEMs and want a better seal and more quiet; SHANCHAHUA is for people who want a simple, reusable, washable plug they can pop in at bedtime or on a flight.
The COMPLY 100 Core Series is a three-pair pack of memory foam replacement ear tips in size Large, finished in black, made from what Comply calls True Memory Foam. The whole point of the material is that it softens with your body heat, then molds to the shape of your ear canal. That is a different approach from a stiff silicone tip that only presses against the canal wall. A tip that conforms tends to sit with less pressure, which is where the comfort claim comes from, and it also tends to hold the earbud more securely so it does not slip out mid-commute or mid-workout.
Where this really matters for the sleep-and-noise angle is the seal. A foam tip that expands to fill the canal creates a more complete barrier than a loose silicone tip, and a better barrier means more background noise gets blocked and bass and clarity come through more easily at lower volumes. If you already own a pair of compatible Etymotic, Westone, Klipsch, ISOtunes Pro or Jays earphones, this is arguably the cheapest way to make them noticeably quieter and more comfortable without buying anything new. The compatibility list is specific though, and Comply itself tells you to verify before purchasing, so check the model list and the compatibility image first.
SHANCHAHUA Reusable Sleep Noise-Canceling: Who It's For
The SHANCHAHUA Reusable Sleep Noise-Canceling earplugs take the opposite approach. This is a complete product in the box: a single pair of white earplugs made from plastic and silicone, plus a mini plastic storage box. The design uses multi-layer sound insulation and high-density acoustic absorption materials, with the brand claiming up to 95% of noise blocked and a 20–35dB reduction range. Precision sealing and ergonomic shaping are the two ideas doing the work here, and the stated goal is a pressure-free fit rather than a tight, plugging sensation.
The comfort spec is the part that matters most for sleep. They are described as ultra-lightweight, with a soft hypoallergenic material, and they ship with four tip sizes — XS, S, M and L — so you can match the tip to your ear canal rather than forcing one size to work. For side sleepers that difference between "pressure-free" and "something jammed in my ear" is the whole game.
The other half of the design is what SHANCHAHUA calls balanced protection. Rather than killing all sound, the plugs are meant to knock down disruptive low-frequency noise — snoring, engine drone, a busy office — while keeping mid and high frequencies audible. That is why the scenario list is so broad: sleeping, concerts, motorcycling, shooting, working, studying, libraries, airplane cabins, travel. At a concert you still want to hear the music, just quieter and safer. They are also described as reusable and washable, and the brand suggests cleaning them regularly.
Buy these if you want one simple product that works everywhere without plugging into anything, if you are a side sleeper who needs a low-pressure fit, or if you want different tip sizes in one pack. Skip them if your real goal is listening to music or podcasts at better quality — these are plugs, and the mention of "noise cancelling earbuds" for music is about blocking distraction, not about audio fidelity. If you need active electronics, this is not that.
Side-by-Side: Which Should You Choose?
• Best for pure noise isolation while you sleep → SHANCHAHUA, because it is purpose-built for sleep with four tip sizes and a pressure-free fit.
• Best for travel and loud venues → SHANCHAHUA, given the 20–35dB reduction rating and the included storage box.
• Best for bass and clarity at lower volumes → COMPLY 100, because the memory foam seal is the mechanism behind that improvement.
• Best for a one-purchase, no-device-needed solution → SHANCHAHUA, because it works entirely on its own.
• Best for people who hate pressure in the ear → SHANCHAHUA, since the fit is explicitly designed to be pressure-free rather than tight.
• Best for people who want to keep hearing conversation and music detail → SHANCHAHUA, due to the balanced approach that preserves mid and high frequencies.
• Best for long-term cost-per-use → COMPLY 100 in my opinion, since three pairs cover a good stretch of use if you care for them properly with warm water and a soft cloth.
If I had to pick one for the stated job — noise-isolating sleep — I would buy the SHANCHAHUA Reusable Sleep Noise-Canceling earplugs. In my opinion, the deciding factor is that it is a complete, self-contained product: you get the plugs, four tip sizes, a storage box, a washable reusable design and a stated 20–35dB reduction, with nothing else required. The COMPLY 100 is excellent at what it does, but it only makes sense if you already own compatible earphones and want a better seal on them. For a straightforward answer to "what do I put in my ears tonight," SHANCHAHUA is the simpler, more directly targeted choice.
are there earbuds for sleeping
Yes, in two different forms. The SHANCHAHUA Reusable Sleep Noise-Canceling earplugs are designed specifically for sleep, with a pressure-free fit and four tip sizes, and the brand lists sleeping first in its use cases. The COMPLY 100 works for sleep only as an accessory — you fit the foam tips onto compatible Etymotic, Westone, Klipsch, ISOtunes Pro or Jays earphones you already own.
what are the best noise cancelling earbuds for sleeping
It depends on whether you want electronics or passive isolation. If you want a standalone plug, the SHANCHAHUA pair offers multi-layer sound insulation with a 20–35dB reduction range and XS/S/M/L sizing, which suits side sleepers who need a soft, low-pressure fit. If you already own compatible IEMs, the COMPLY 100 memory foam tips are, in my opinion, the better route to a deeper seal and more blocked background noise.
can you sleep with noise cancelling earbuds
You can, but comfort and fit decide whether it works for you. The SHANCHAHUA plugs are described as ultra-lightweight with a secure, pressure-free fit and a soft hypoallergenic material, which is what makes them sleep-friendly. The COMPLY 100 tips soften with body heat and mold to your ear canal, so they reduce the pressure and slipping that often make earphones uncomfortable overnight.
is it bad to sleep with noise cancelling earbuds
The main considerations are fit pressure, cleanliness and long-term comfort, not the concept itself. With the SHANCHAHUA plugs, the brand recommends regular cleaning and provides washable, reusable silicone, which supports hygienic nightly use. With the COMPLY 100, the care instructions are specific: clean gently with warm water and a soft cloth and avoid alcohol-based cleaners or lotions, which can degrade the foam. If you feel persistent discomfort or pressure, take the plugs out and try a different tip size — SHANCHAHUA includes four sizes for exactly that reason.
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See also: ZIHNIC Active Noise Canceling vs Belkin ANC: Active Noise, ZHENYEMEI Eye Mask vs tahoesleep 3D: Noise Blocking Sleep, Kingdder 30 vs 1MORE Noise-canceling Headphones: Over Ear