Will the red LED display wake the baby or my partner?

No. This profile runs the 8×32 matrix at 1% brightness in deep red (#ff2a2a), the least sleep-disrupting color; it is only visible to the wearer's downward gaze, and Pad 4 drops it further to a Night-Crawl 0.5%.

How do I know which side to feed next at 2:45 AM when I can barely think?

Swipe Pad 5 and the sleeve scrolls your last logged side plus a NEXT SIDE estimate, so the log itself tells you where to start without counting backward in your head.

Does the log sync to a baby-tracker app?

Optionally. The sleeve stores the taps locally and can fire a BLE/webhook event you can forward to your own tracking sheet from Sleeve Studio; it works fully offline for the around-the-clock log if you prefer no phone in the nursery.

Use Case #45 · Accessibility, Health, Parenting & Everyday Friction · All 50 Modes

3 AM Newborn Feeding Side and Diaper Logger Cuff for Sleepy Parents

At 3 AM your eyes can stay closed: tap Pad 1 or Pad 2 to log which side you just fed on, and the 8×32 matrix shows a dim, night-safe red readout like LAST: LEFT 02:14A plus a diaper tally — no phone glow to wake the baby or your partner ($199).

One sleepy tap logs the feed: Pad 1 records a left-side feed, Pad 2 a right, and the dim display confirms it instantly.
Night-safe low-red glow: The matrix runs deep red at low brightness, visible only to your downward gaze — not the bassinet.
Ships as 1 of 50 modes: Pre-loaded as Feed Side Log; rename columns or dim the display in the Sleeve Studio app.

Preorder Sleeve · $199 Free US Shipping Try in Sleeve Studio →

▶ See the 8×32 Forearm Display in Action

Watch the 8×32 RGB LED matrix and 5 conductive-fabric touch pads running timers, kitchen, focus, health and work modes on the forearm sleeve. Concept render · simulated 8×32 display · first production run of 500 units.

Why Unlocking a Bright Phone at 3 AM Ruins Sleep for You and Baby

No blue-white jolt: A bright phone screen wakes dark-adapted eyes; the sleeve keeps light to a dim, night-safe red.
Works fully offline: The feed log lives on your forearm, so nothing needs your phone in the nursery.
Peer-reviewed textile roots, shipping hardware: The Oct 2026 NUS Nature paper coined “garment GUI” with a lab-only woven pixel fibre (not for sale); our shipping $199 sleeve uses 5 sewn conductive-fabric pads and a removable 8×32 LED pod.

What Each Forearm Pad Does (Pads 1–5)

Pad 1 (Elbow)Single tap — Log a LEFT-side feed at the current time · LED cue: Dim red shows LAST: LEFT 02:14A (1% brightness)

Pad 2 (Upper Mid)Single tap — Log a RIGHT-side feed at the current time · LED cue: Dim red shows LAST: RIGHT 03:02A

Pad 3 (Center)Double tap — Add a diaper-change mark to today's tally · LED cue: Dim amber diaper icon plus the running count

Pad 4 (Lower Mid)Press & hold — Dim to Night-Crawl 0.5% and freeze the display · LED cue: Near-black red, still readable from 6 inches

Pad 5 (Wrist)Swipe — Scroll the last 3 events and the next-due estimate · LED cue: Dim scroll: L 02:14 · R 03:02 · DIAPER 03:05

Customize in 30 seconds: Pick this mode in the Sleeve Studio app, type or speak new text, colors, or pad actions, and tap Send over Bluetooth — no code, no wiring.

Frequently Asked Questions

Will the red LED display wake the baby or my partner?: No. This profile runs the 8×32 matrix at 1% brightness in deep red (#ff2a2a), the least sleep-disrupting color; it is only visible to the wearer's downward gaze, and Pad 4 drops it further to a Night-Crawl 0.5%.
How do I know which side to feed next at 2:45 AM when I can barely think?: Swipe Pad 5 and the sleeve scrolls your last logged side plus a NEXT SIDE estimate, so the log itself tells you where to start without counting backward in your head.
Does the log sync to a baby-tracker app?: Optionally. The sleeve stores the taps locally and can fire a BLE/webhook event you can forward to your own tracking sheet from Sleeve Studio; it works fully offline for the around-the-clock log if you prefer no phone in the nursery.

Run This Mode on Your Forearm — Reserve Batch 01 ($199)

Complete hardware + 50 modes ($199): 8×32 RGB LED matrix (256 pixels), 5 sewn conductive-fabric touch pads, and a 5-second slide-out washable electronics pod.
Sleeve Studio app ships first: Personalize all 50 modes in plain words before your sleeve arrives (small monthly subscription; no code).
Zero-risk preorder: First run of 500 units (~30 days to production), free US shipping, 100% refund anytime before shipping plus a 90-day money-back guarantee.

Preorder Sleeve · $199 Free US Shipping Open Sleeve Studio Full Hardware Specs

Watch → Prove → Buy

Not ready to order yet? Take the next step.

See the hardware in motion, read the peer-reviewed textile research behind it, or reserve your spot in the first production run of 500 sleeves.

STEP 1Watch the sleeve in action Five soft touch pads, an 8×32 RGB LED display, Bluetooth, and a removable electronics pod for gentle washing. See the hardware → STEP 2See how the app customizes any mode Pick from 50 pre-built modes or type a new one in plain words. The Sleeve Studio app ships before your hardware. See Sleeve Studio → STEP 3Preorder the Sleeve — $199 First run of 500. ~30 days to production. Free US shipping. Full refund anytime before it ships. Order now →

90-day money-back guarantee, plus a full refund any time before the sleeve ships.

Questions about your setup? Call +1 725-338-4835 or email alex@midnightdev.dev.