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Updated: 2026-10-05 · 7 min read · Independent comparison
• Cmokifuly Ear Plugs — biggest strength: three switchable noise-reduction modes (Light 23 dB, Comfort 28 dB, Deep 38 dB) with four pairs of silicone eartips, so you can tune both the fit and the amount of sound you block.
• Cmokifuly Ear Plugs — biggest trade-off: they're purely passive. No Bluetooth, no audio, no app. They quiet the world; they don't play anything into your ears.
• goazzzl Flat Sleep Earbuds — biggest strength: two pairs of earbuds in one pack — ultra-flat sleep buds plus mini "invisible" buds — with Bluetooth 5.4, a claimed 66H of battery and a low-profile shape built for side sleepers.
• goazzzl Flat Sleep Earbuds — biggest trade-off: they rely on sound isolation rather than active noise cancellation, and the flat design is aimed at small ear canals, so fit is more specialized than a universal plug.
• Who each pick is for: Cmokifuly for people who want silence on demand with zero charging; goazzzl for people who want to listen while they sleep, study or take calls.
Cmokifuly's whole pitch is control over how much noise reaches you. A small switch on each plug lets you pick between three reduction levels: Light at 23 dB, Comfort at 28 dB and Deep at 38 dB. That's a genuinely useful range. Deep mode is the one I'd reach for at night when a partner snores or neighbours are loud; Comfort mode is what I'd use at a concert, where you want the music to stay clear but the volume to come down; Light mode suits an office, a lecture hall or a study session where you still want to hear a timer or someone calling your name.
Fit is handled with four pairs of eartips: three single-layer pairs in Small, Medium and Large, plus a Medium double-layer pair tucked separately at the bottom of the packaging. In my opinion that's the smartest part of the design — most earplug disappointment comes down to the wrong tip, and having both single and double-layer options in the box gives you a real chance of finding a seal. The tips are skin-friendly silicone, they rinse clean, and Cmokifuly rates each plug at roughly 1.5g, so there's very little weight pressing on your ear overnight. The whole kit travels in a compact case with a lanyard, about 20 grams.
Who should buy it: side sleepers who just want quiet, students who need to mute a noisy house while reading, flyers, concertgoers, anyone bothered by snoring. Who should skip it: if you want white noise, music, podcasts or crystal-clear calls in your ears, these won't do it — there's no audio path at all. They also can't be fine-tuned mid-night beyond the three physical modes.
goazzzl solves a different problem: how to keep earbuds in your ears while you lie on your side. The sleep pair is built with a super-flat, low-profile shape so it doesn't press into your ear when your head is on the pillow — the exact spot where ordinary earbuds become unbearable. The second pair in the box is a set of mini earbuds, each around 0.1 oz, ergonomically shaped to sit deep in small ear canals and stay almost invisible during the day. One pack, two jobs.
The dual-buds setup is the feature I like most. Because you get two pairs, you can wear one while the other charges, which is how goazzzl gets to that 66H battery figure — you're not waiting on a single set to top up. Bluetooth 5.4 handles the wireless connection, there's an LED display for status, and the buds are listed as waterproof. Sound is described as clear, soft and non-harsh, aimed at white noise, music and audiobooks rather than thumping bass. Noise control is sound isolation, not active cancellation, so they block some outside noise by sealing your ear rather than by processing it.
Who should buy it: side sleepers who want audio at night, people with small ear canals who find normal buds fall out, anyone who wants one product for both sleep and daytime work or calls, and students who'd rather play focus music or a lecture recording than sit in silence. Who should skip it: if you want maximum raw noise blocking with no battery to manage, or if you dislike in-ear audio entirely, the Cmokifuly plugs are the more dependable answer. And if your ear canals are average or large, the mini buds' deep-seated fit may not suit you as well as it suits a small-eared user.
• Best for pure noise blocking → Cmokifuly Ear Plugs. Deep mode is rated at 38 dB of passive reduction, and there's nothing to charge.
• Best for side sleeping with audio → goazzzl Flat Sleep Earbuds. The flat profile is designed specifically so it won't dig into your ear against a pillow.
• Best for listening to white noise, music or audiobooks → goazzzl Flat Sleep Earbuds. Cmokifuly has no audio at all.
• Best for study sessions in a loud house → Cmokifuly Ear Plugs. Light 23 dB mode cuts background chatter while keeping you aware of your surroundings.
• Best for open-ear-style focus without blocking the world → goazzzl's mini buds. They sit deep and discreet, so you can take calls or play background audio at a desk without drawing attention.
• Best for battery life → goazzzl Flat Sleep Earbuds. Two pairs of buds plus a 66H rating means one set charges while you wear the other.
• Best for travel and concerts → Cmokifuly Ear Plugs. The 20g lanyard case slips into a pocket, and Comfort mode keeps live music intelligible.
• Best for small ear canals → goazzzl Flat Sleep Earbuds. The mini buds are shaped for exactly that; Cmokifuly instead gives you four tip sizes to experiment with.
If I were buying for myself, I'd pick the goazzzl Flat Sleep Earbuds — but only because I want sound in my ears at night, not just silence. For study, the ability to play white noise or a lecture while lying flat on my side is worth more to me than a decibel rating, and the second pair of mini buds covers daytime calls and desk work without a second purchase. If your goal is simply to make a noisy room quiet — snoring, traffic, a shared dorm — I'd take the Cmokifuly Ear Plugs instead. No battery, no pairing, three honest reduction levels, and a tip for almost any ear. For study in particular, that's the more foolproof choice.
how to sleep with earbuds
The main issue is pillow pressure, which is exactly what goazzzl's ultra-flat sleep buds are shaped to avoid — they're designed not to press into your ear when you lie on your side. If pressure is your problem rather than sound, Cmokifuly's 1.5g silicone plugs are the lighter, simpler option.
how to sleep with earbuds on side
how to wear ionix sleep earbuds
I can't speak to that brand — this comparison covers Cmokifuly Ear Plugs and goazzzl Flat Sleep Earbuds only. For goazzzl, the flat pair is for night use and the mini pair for daytime, and you simply swap them when one needs charging. For Cmokifuly, insert the silicone tip that seals best, then slide the switch to Light, Comfort or Deep.
are these good for studying?
Both work, in different ways. Cmokifuly's Light 23 dB mode lowers background noise while keeping you alert to your surroundings — good for a shared house. goazzzl's mini buds let you play focus audio or take calls discreetly, and the flat pair covers late-night study in bed. Prices change, so check the current price on Amazon before deciding.
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