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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-03 · 7 min read · Independent comparison
• PEFUPEW 3D — biggest strength: A 3D contoured blackout eye mask with built-in Bluetooth 5.3 audio, so it combines light blocking and sound in one soft, washable piece. Its biggest trade-off is that its "noise blocking" is a physical/comfort approach, not active cancellation — the advertised noise reduction (ENC) is aimed at your voice on calls, not at the room around you.
• Ertuly T33 — biggest strength: True wireless sleep earbuds with dual-microphone Hybrid ANC that the maker says neutralizes up to 98% of disruptive sound, plus a dedicated Sleep Mode. Its biggest trade-off is that it's in-ear, so comfort depends on your ears tolerating a bud all night.
• Pick PEFUPEW 3D if you're a side sleeper who hates things inside your ears, wants total darkness, and mostly needs a steady, quiet soundtrack to fall asleep to.
• Pick Ertuly T33 if your problem is noise — a snoring partner, a loud street, a humming appliance — and you want the headphone itself to fight it.
The PEFUPEW 3D is best understood as a sleep mask first and a headphone second. Its core is an ergonomic 3D shell that carves out space around the eyes so your eyeballs can move freely and nothing presses on your lids — which is the classic complaint about flat masks. It's held on with an elastic band plus a hook-and-loop strap, so it adjusts across head shapes and is meant not to grab your hair.
For blocking, it leans on layers rather than electronics: a dense outer fabric, a middle light-absorbing fabric, and an inner memory-foam/sponge fill, cut in three dimensions to shut out light — including the angled light that sneaks in around curtains or a porthole. The brand claims up to 99% light blocking. The fabric is described as 95% 5A pure cotton over memory foam, hypoallergenic and breathable, and the main body detaches for machine washing and dries in about 30 minutes.
Who should buy it: side sleepers and back sleepers who want zero pressure on the eyes, anyone who finds earbuds uncomfortable overnight, people who want a single washable object that handles both light and sound, and gift-givers (it's listed in pink, in a one-count pack).
Who should skip it: if your main enemy is loud, unpredictable noise. This design doesn't actively cancel the room — it covers your eyes, plays your audio, and relies on comfort and light blocking. If you need the noise itself reduced, the T33's approach fits better.
Ertuly T33: Who It's For
The Ertuly T33 takes the opposite route: it's a pair of true wireless sleep earbuds built around active noise cancellation. Dual-microphone Hybrid ANC is the headline, and the brand claims it actively neutralizes up to 98% of disruptive sounds — snoring, traffic, appliance hum. A triple-tap switches between ANC and Transparency Mode, and there's a dedicated Sleep Mode on top of that.
Comfort is the other half of the pitch. The buds are small, low-profile, and made from skin-friendly silicone with an ergonomic shape meant to sit snugly whether you're on your back or your side — the "side sleeper earbuds" claim. Being in-ear and plastic rather than fabric, they're a very different feel from a mask: nothing covers your eyes, and your ears do the work.
Battery is split the way true wireless usually is: up to 8 hours of playback per charge, with the case extending total playtime to 48 hours. A full recharge takes about 1.5 hours over USB-C, and the case has an LED battery indicator so you can see where you stand. Connectivity is Bluetooth 6.0 with a 10-meter range, and controls are touch-based media controls. The driver is dynamic with 38-ohm impedance. In the box you get the buds, the charging case, a cable, and a manual, with a one-year warranty listed. The color is navy.
Who should buy it: people whose sleep is broken by sound — a snorer next to them, a noisy street, a fridge or AC hum — and side sleepers who are fine with small in-ear buds and want a transparency option for when they're awake.
Who should skip it: anyone who can't tolerate earbuds overnight, or who needs total darkness. The T33 does nothing about light, and if your ears get sore from in-ear wear, the ANC won't matter.
• Best for active noise blocking → Ertuly T33. Hybrid ANC with a claimed 98% reduction is the whole point of this model.
• Best for light blocking → PEFUPEW 3D. The layered 3D mask is built around blackout, with a claimed 99%.
• Best for total battery headroom → Ertuly T33. 8 hours per charge and 48 hours with the case versus PEFUPEW's 33 hours continuous.
• Best for a single-charge overnight → PEFUPEW 3D. Its 33-hour figure means one charge can cover multiple nights without docking.
• Best for side sleepers who hate in-ear buds → PEFUPEW 3D. The mask sits on your face, not inside your ears, and the 3D cut keeps pressure off your eyes.
• Best for side sleepers who want in-ear ANC → Ertuly T33. The low-profile silicone buds are designed to stay put on your side.
• Best for cleanability → PEFUPEW 3D. The mask body detaches and machine washes, drying in about 30 minutes.
• Best for switching between quiet and awareness → Ertuly T33. ANC and Transparency modes with a quick triple-tap.
• Best for a gift → PEFUPEW 3D. It's positioned as a men's/women's gift item and comes in pink; the T33 is a functional navy tech pick.
If I had to pick one, I'd buy the Ertuly T33 — because the question that matters most here is noise, and the T33 is the only one of the two that actually attacks sound with active cancellation instead of just masking it with your own audio. In my opinion, if a snoring partner or street noise is what wakes you up, ANC is the feature that earns its place on your nightstand. That said, if you can't stand anything in your ears or you need real darkness, I'd go with the PEFUPEW 3D without hesitation. Check the current price on Amazon before deciding — both are worth comparing on that basis.
FAQ
how to block out noise with headphones
are there noise cancelling headphones for sleeping
Yes. The Ertuly T33 is built exactly for that: true wireless sleep earbuds with Hybrid ANC (claimed up to 98% reduction), a Sleep Mode, and small silicone buds designed for side sleepers. The PEFUPEW 3D is a different category — a blackout mask with Bluetooth audio, so it blocks light and plays sound rather than cancelling the room.
is it safe to wear noise cancelling headphones while sleeping
The design intent of both products is overnight wear — the T33 is explicitly made for sleeping, and the PEFUPEW 3D is a washable mask meant to be worn all night. Comfort and fit matter most: choose the T33 if in-ear buds suit you, or the PEFUPEW 3D if you'd rather nothing sit inside your ears. Follow each maker's guidance on volume and charging.
what are the best noise cancelling sleep headphones
There isn't one universal answer — it depends on whether your problem is noise, light, or both. For pure noise blocking, I'd point to the Ertuly T33 with its Hybrid ANC and Sleep Mode. For darkness plus a soft soundtrack, the PEFUPEW 3D and its claimed 99% light blocking is the better fit. Match the tool to what actually wakes you up.
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