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White sleep monitor with grey L/XL armband, white cube USB charger, grey microfiber cloth

Garmin

Garmin Index Sleep Monitor L/XL Bundle wearable technology

SKU CH-4M7H-ZE50J

An upper-arm sleep tracker delivers nightly recovery scores, sleep stages, respiration and skin-temperature trends without wearing a watch to bed

  • Track sleep score and stages without wearing a watch to bed
  • Smart wake vibration rouses you at the optimal point in your cycle
  • Skin temperature trends reveal past ovulation and menstrual insights
  • Breathing variation monitoring highlights shifts in nighttime respiration
  • Up to 7 nights battery life with effortless Garmin Connect syncing

Garmin Index Sleep Monitor L/XL

The Garmin Index Sleep Monitor is a wearable sensor worn on the upper arm that captures overnight sleep stages, respiration and skin-temperature trends without a wrist device. A lightweight, breathable band in size L/XL stays comfortable all night and is machine-washable for simple hygiene. Up to seven nights of battery life mean you charge it roughly once a week. Data syncs automatically to the Garmin Connect app for a complete daily wellness picture.

Ideal for watch-free sleep tracking

This bundle suits people who dislike wearing a watch or band on the wrist while sleeping but still want detailed recovery metrics and a smart vibrating alarm that wakes them at the optimal point in their sleep cycle. It also adds menstrual-cycle insights through temperature trends. Buyers who need real-time heart-rate alerts, on-device GPS, contactless payments or a display for daytime notifications should look at a full-featured smartwatch instead.

Upper-arm band size L/XL

The monitor ships with a single breathable band sized for larger upper arms (L/XL). If your upper-arm circumference falls outside this range the sensor will not fit securely and accuracy will suffer. Garmin sells a separate S/M band for smaller arms, so confirm your measurement before ordering.

Highlights

  • Track sleep score and stages without wearing a watch to bed
  • Smart wake vibration rouses you at the optimal point in your cycle
  • Skin temperature trends reveal past ovulation and menstrual insights
  • Breathing variation monitoring highlights shifts in nighttime respiration
  • Up to 7 nights battery life with effortless Garmin Connect syncing

Specifications

No published specifications for this item yet.

Questions about this item

What size upper arm band comes in the L/XL bundle for the Index Sleep Monitor?

The bundle includes the L/XL band size, designed to fit larger upper arms for comfortable overnight wear.

Can the Index Sleep Monitor combine its overnight data with daytime metrics from my existing Garmin watch?

Yes, it syncs sleep stages and recovery data to Garmin Connect, filling in overnight gaps for compatible watches worn during the day.

How will I know the Index Sleep Monitor recorded a full night of sleep after I set it up?

Check the Garmin Connect app each morning for a sleep score, stage breakdown, respiration trends, and skin temperature data.

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