We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-18 · 6 min read · Independent comparison
If you want all-night battery life plus swim-grade waterproofing, choose Hulaed Invisible Sleep Headphones; if you need the lightest possible earbud for side sleeping with a charging case that shows its own battery level, choose YLYHHFY Sleep Earbuds.
• Hulaed Invisible Sleep Headphones — biggest strength: 6–8 hours of continuous play per charge, a sleep mode that disables the buttons so you don't wake yourself up, and IPX6 waterproofing rated for swimming and surfing.
• Hulaed Invisible Sleep Headphones — biggest trade-off: It's designed to sit outside the ear canal with a sound-isolation approach rather than active noise cancellation, and there's no charging case mentioned in the specs — just the earbuds themselves.
• YLYHHFY Sleep Earbuds — biggest strength: Roughly 3 grams per earbud with a flat, zero-pressure fit built specifically around side sleepers, plus a charging case with an LED power display and 13mm dynamic drivers.
• YLYHHFY Sleep Earbuds — biggest trade-off: Only 3–4 hours of playtime per charge, which means most people will need a mid-night top-up from the case.
• Who each pick is for: Hulaed suits restless sleepers, swimmers and anyone who wants one long uninterrupted session. YLYHHFY suits side sleepers who prioritize near-weightless comfort and don't mind recharging.
The Hulaed pair is built around one idea: get out of your way for a full night. The listed runtime is 6–8 hours of continuous use, and that number matters more than it sounds. If you fall asleep to music, white noise or a podcast, 6–8 hours covers a normal night without you waking up at 3 a.m. to silence. The sleep mode reinforces that — once activated, the buttons are disabled, so rolling onto your side won't pause your audio or crank the volume.
Comfort is handled with soft silicone eartips and eartip caps, and the design deliberately avoids pushing deep into the ear canal. Hulaed claims you can wear them all day without soreness, and the side-sleeper framing is consistent with that: the housing is meant to sit discreetly enough that lying on your ear doesn't create a painful pressure point. If you toss and turn, that's the scenario this product is aimed at.
The standout spec is IPX6 waterproofing. That's a genuine step beyond sweat resistance — it's the rating bracket associated with swimming, surfing and snorkeling, and the listing explicitly claims dynamic audio underwater. In my opinion, that makes Hulaed the pick for anyone who wants one pair for bed and the pool. Bluetooth 5.3 handles pairing and connection stability, with 3D surround sound processing and a noise-reduction microphone for calls. Impedance is listed at 16 ohm, which is easy to drive from a phone.
Who should skip it? If you truly need maximum noise blocking, note that Hulaed lists its noise control as sound isolation, not active noise cancellation — it reduces what reaches your ear but won't erase a snoring partner or a busy road. And if you want a case that visibly reports its charge level, this listing doesn't describe one.
YLYHHFY attacks the same problem from the opposite direction: make the earbud so light you forget it's there. Each earbud is about 3 grams, and the whole package is listed at 70 g including the case. The pitch is a flat, zero-pressure fit — ultra-thin housing, ergonomic shape, sits snugly and stays put through the night. For a strict side sleeper, that weight figure is the single most persuasive number on the sheet.
Sound hardware is where YLYHHFY differentiates itself from Hulaed. It uses 13mm dynamic drivers, which is a large driver for an earbud this small, and the listing promises deep bass and a strong mid-range with an immersive, concert-like character. Each earbud has a built-in microphone with call noise cancellation, and the connection is wireless Bluetooth — the bullet points say 5.3, while the product title says 5.4, so treat the exact version with a grain of salt and expect modern Bluetooth either way. Pairing is automatic on removal from the case, and controls are touch-based.
Battery is the honest weak point. Playtime is listed at 3–4 hours per charge, with about 30 hours of standby once connected. In practice, that's a nap, a workout, or the first half of a night. The mitigation is the charging case, which has a built-in LED power display showing remaining charge in real time — a small feature that genuinely helps, because you can see at a glance whether you're heading to bed with a topped-up case. There's also an 18-month warranty listed, which is a longer stated coverage window than Hulaed's sheet mentions.
Who should skip it? Anyone who wants to sleep through eight hours on a single charge. Three to four hours means a recharge ritual. Also note the sheet lists ear placement as "on ear," which is a bit inconsistent with the in-ear, side-sleeper description — worth keeping in mind if fit is your deciding factor.
• Best for battery life → Hulaed Invisible Sleep Headphones. 6–8 hours continuous versus 3–4 hours.
• Best for the lightest possible fit → YLYHHFY Sleep Earbuds. About 3 grams per earbud with a flat, zero-pressure design.
• Best for swimming and water sports → Hulaed Invisible Sleep Headphones. IPX6 waterproofing explicitly covers swimming, surfing and snorkeling.
• Best for seeing your battery status → YLYHHFY Sleep Earbuds. The charging case has a built-in LED power display.
• Best for audio hardware → YLYHHFY Sleep Earbuds. 13mm dynamic drivers aimed at deeper bass and a fuller mid-range.
• Best for not touching the wrong button at night → Hulaed Invisible Sleep Headphones. Sleep mode disables all buttons while you drift off.
• Best for call clarity → a tie, on paper. Both list a noise-reduction microphone for calls.
• Best for long-term wear without ear-canal soreness → Hulaed Invisible Sleep Headphones, by design intent, since it avoids seating deep in the canal.
In my opinion, I'd buy the Hulaed Invisible Sleep Headphones. The reason is simple and it's the one spec that governs everything else for a sleep product: 6–8 hours of playtime means you actually sleep through the night on one charge, and sleep mode means you won't accidentally wake yourself up fidgeting. Add IPX6, and you get a pair that works at the pool as well as the pillow. The YLYHHFY is a compelling alternative if weight is your absolute priority — 3 grams and a charge-status display are real advantages — but the 3–4 hour runtime puts it in second place for me. Check the current price on Amazon before deciding, since that's the one variable I can't weigh in.
Is the Hulaed Invisible Sleep Headphones better than the YLYHHFY Sleep Earbuds for side sleepers?
Both are explicitly designed for side sleepers. YLYHHFY is lighter at about 3 grams per earbud, while Hulaed focuses on staying out of the ear canal and lasting 6–8 hours. If pressure is your main concern, YLYHHFY's weight is the stronger spec; if you want to sleep through the night uninterrupted, Hulaed wins.
Hulaed lists 6–8 hours of continuous use. YLYHHFY lists 3–4 hours of playtime with roughly 30 hours of standby once connected to your device. Those are the manufacturers' stated figures — real-world numbers will vary with volume and content.
Yes, according to the specs. Hulaed carries an IPX6 waterproof rating and the listing says it supports swimming, surfing and snorkeling. The YLYHHFY sheet doesn't state a water-resistance rating, so I wouldn't assume it's safe for swimming.
No — neither sheet lists active noise cancellation. Hulaed describes its noise control as sound isolation and adds a noise-reduction microphone for calls. YLYHHFY describes call noise cancellation on its built-in microphones. Both reduce what reaches your ear, but neither is marketed as ANC.
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