My baby won't sleep without noise. What is the best sound machine with a battery backup for power outages?

If staying on during a power outage is the priority, I’d look at the Hatch Rest+ 2nd gen first.

• Hatch Rest Go - $39.99 (Target)

My picks

• Best for nursery + outages: Hatch Rest+ 2nd gen — $89.99. It has a built-in battery rated for up to 12 hours, so it can keep playing through an overnight outage. It also has a night light, sleep sounds, routines, and app control.Hatch Support+1
• Best inexpensive portable option: Yogasleep Hushh 2 — about $30. It's USB-C rechargeable, has six sounds, a night light, toddler lock, and is designed to be clipped nearby. Because it's rechargeable, it can continue operating when the wall loses power—as long as you've charged it beforehand.Yogasleep+1
• Best if you want lots of sounds: Hatch Rest Go — $39.99. It has 10 sounds and a built-in battery, with simple physical buttons and a clip.Hatch+1
• Longest-battery portable alternative: Yogasleep Hushh+. It has 20+ sounds, Bluetooth, and a rechargeable battery marketed for longer use than the smaller Hushh models.Yogasleep

For your specific situation—“baby wakes when the noise stops”—I'd choose the Rest+ 2nd gen if this will live in the nursery. The 12-hour battery gives you considerably more outage protection than a small travel machine.Hatch Support

One safety note: keep the machine at least 3 feet from your baby's head and use a moderate volume; Yogasleep specifically recommends the 3-foot distance for its machines.Yoga Sleep Support

If you want, I can also compare the 3–4 best battery sound machines under $50, including actual battery runtime.

If power-outage protection is the priority, I’d look for a rechargeable machine that keeps playing when unplugged, rather than one that merely has a battery for travel.

My picks

• Yogasleep Hushh+ - $49.99 (Yogasleep)

Best simple choice: Yogasleep Hushh+ — $49.99. It has a rechargeable battery, 20+ sounds, and is designed specifically for portable baby sleep. It’s a good fit if you mainly want dependable noise without a complicated app.Babylist

• Dreamegg Lite D11 - $34.99 (Dreamegg)

Best value: Dreamegg D11 — $34.99. Rechargeable, 21 sounds, and a night-light. Current reviews specifically identify the D11/D11 Max as a strong budget option with substantial cordless runtime.SimplyTheBest+1

• ergoPouch Drift Away - $54.95 (Nordstrom)

Best for very long outages: ergoPouch Drift Away — $54.95. Its manufacturer-listed/product listings advertise up to 48 hours of playback, which is unusually useful if outages in your area can last overnight or longer.Sleep Deeper

What about Hatch?

The Hatch Rest+ 2nd Gen is worth considering if you want a night-light, routines, app control and a toddler wake clock in addition to sound. Its built-in battery is rated for up to 8 hours, so I'd choose one of the simpler rechargeable machines above if your primary concern is keeping noise going through an extended blackout.Sleep Foundation

For your situation, I'd pick the Hushh+ if you want simple and baby-focused, or the ergoPouch Drift Away if maximum battery endurance during an outage matters most.

One safety point: keep the sound machine at least 7 feet from the baby's sleep space and use a low volume; Babylist's 2026 guidance cites the AAP's 7-foot placement recommendation.Babylist

If you tell me your baby's age and roughly how long your typical power outages last, I can narrow this to one model.

When a baby relies on sound to sleep, a power outage can quickly turn into a midnight emergency. Standard plug-in sound machines go silent immediately, but you have a couple of great routes: nursery machines with a built-in backup battery, or keeping a portable, rechargeable sound machine plugged in and ready to take over.

Top options designed to handle power failures or keep your baby asleep on the go include:

1. • Hatch Rest Plus (2nd Gen)
   • Why it works: This popular all-in-one nursery light, clock, and sound machine features an up to 8-hour built-in backup battery . If the power grid fails, the machine seamlessly stays powered on and keeps playing your baby's preferred sound without missing a beat.
   • Key features: Wi-Fi and app-controlled, customizable color/sound routines, and a reliable internal battery backup explicitly rated to bridge nighttime outages. You can check it out directly on the Hatch Official Website.
2. • Nanit Sound + Light Machine
   • Why it works: Built with a rechargeable battery that yields up to 8 hours of cordless use , this smart device works as a nightlight, audio monitor, and sound machine.
   • Key features: Cry detection alerts, seamless integration with the Nanit ecosystem, and smooth battery transition during unexpected blackouts. More details are available via the Nanit Official Store.
3. • Yogasleep Hushh+ or Rohm+
   • Why it works: If you want a budget-friendly or ultra-flexible setup, you can use a dedicated portable machine. While marketed for travel, keeping a portable unit like the Hushh+ plugged into the wall via USB-C on your nursery nightstand means it is always at 100% capacity. If the power cuts out, it won't shut off—it will just pull from its internal 20-hour rechargeable battery.
   • Key features: 20 built-in sleep sounds, amber nightlight, and continuous play options. You can find it on the Yogasleep Official Website.

To help narrow down the best choice, let me know:

• Do you want a full nursery smart device (like a nightlight/clock combo) or a simple dedicated sound machine?
• Roughly how long do typical power outages last in your area?

If power-outage protection is the priority, I’d choose the Hatch Rest+ rather than the standard Hatch Rest. The Rest+ has a rechargeable battery, so it can keep playing when the nursery loses power; it also gives you a night-light, lots of sounds, and app-controlled routines.The Dad Sneeze+1

My picks

• Yogasleep Hushh+ - $53.99 (Poppylist Shop)

• LectroFan Micro2+ - $44.95 (Adaptive Sound Technologies)

• Hatch Go Portable Sound Machine - $39.99 (Target)

• Yogasleep Hushh - $29.99 (Walmart.com)

• Best for a nursery + outages: Hatch Rest+ — The best choice if you want the machine permanently in the nursery and want it to automatically continue through an outage. It also grows with your baby into a toddler wake-up clock.The Dad Sneeze

• Best simple/portable option: Yogasleep Hushh+ — $49.99, rechargeable via USB-C, 20+ sounds, amber night light, and compact enough to move around.Yogasleep

• Best inexpensive option: Yogasleep Hushh — About $26, USB-C rechargeable, with white noise, ocean and rain. It's particularly nice if you want something you can clip to a stroller or diaper bag.Yogasleep

• Best if you want lots of battery runtime: LectroFan Micro2+ — rechargeable with a claimed 20+ hours of battery life and 11 sounds.

For your specific situation, I'd buy the Hatch Rest+ if this is primarily for the baby's room. If you want something inexpensive that you can also carry around, I'd get the Hushh+.

One important safety point: keep the sound machine well away from the crib and baby's head, rather than attaching it to the crib, and use the lowest volume that works. Babylist's 2026 guide also recommends careful placement and volume when using sound machines.babylist.com

If you tell me your budget (e.g. under $40, $60, or $100), I can narrow it to the single best one.

If power-outage backup is the priority, I’d choose a sound machine with a built-in rechargeable battery, rather than one that only works from the wall.

My top picks

• ergoPouch Drift Away White Noise Machine - $54.95 (Walmart - Martellor LLC t/a ergoPouch)

• Yogasleep Hushh 2 Battery and USB Sound Machine - $32.99 (Target)

• LectroFan Alpha Portable Sleep Sound Machine - $29.95 (Best Buy)

• Hatch Rest Go Portable Sound Machine - $39.99 (Target)

• Best for outages: ergoPouch Drift Away — Its rechargeable battery is rated for up to 48 hours of playback, making it particularly well suited to overnight outages or even a longer power interruption. It has 7 calming sounds and USB-C charging.

• Best baby-specific option: Yogasleep Hushh 2 — Compact, designed specifically for babies, with six sounds and battery/USB operation.

• Best simple white-noise option: LectroFan Alpha — Rechargeable and portable, with non-looping sounds; a good choice if you mainly want consistent white noise rather than lots of baby features.

• Best inexpensive travel option: Hatch Rest Go — Rechargeable/portable with 10 sounds, but I'd favor the ergoPouch if long outage runtime is the deciding factor.

My pick for your situation: the ergoPouch Drift Away. A 48-hour battery gives you substantially more outage insurance than the typical portable baby machine.

One important baby-sleep note: keep the machine well away from the crib/bassinet and at a moderate volume rather than placing it right beside your baby.

If you'd like, I can also narrow this down to the best 3 under $50, including battery runtime and current prices.