The Kao MegRhythm Steam Neck Sheet Good Night is a disposable self-heating sheet designed to gently warm the base of the neck with abundant steam heat for approximately 30 minutes.

Simply open the individual package, peel away the release paper and attach the sheet directly to the skin at the base of the neck. The heat-generating material begins warming automatically when exposed to air, so no microwave, batteries, hot water or external power source is required.

The sheet provides approximately 40°C of comfortable steam warmth, creating a soothing sensation similar to placing a warm steamed towel around the neck.

Designed Specifically for the Neck

The sheet is shaped for placement at the base of the neck, an area where gentle warmth can feel especially comfortable after a long day of desk work, studying, commuting or screen time.

Its thin and flexible construction helps it stay close to the skin while allowing natural movement.

The adhesive design helps the sheet remain securely in place even when changing posture, making it convenient for use while sitting, reading, watching television or relaxing before bedtime.

Approx. 40°C Steam Warmth

Once opened, the heat-generating material reacts with air and gradually begins to warm.

The sheet reaches approximately 40°C and continues providing steam warmth for around 30 minutes.

The combination of heat and moisture creates a soft warming sensation around the neck rather than the dry heat of a conventional disposable warmer.

Good Night Relaxation

The Good Night version is designed for evening relaxation.

It can be used after work, during personal relaxation time, while reading or before going to bed.

The warming period is short enough to fit easily into a nighttime routine while still providing enough time to enjoy the gentle steam heat.

The sheet should be removed before actually falling asleep.

Unscented

This version is completely unscented.

It is suitable for users who prefer fragrance-free relaxation products or who want a warming sheet that can be used without adding noticeable scent.

The unscented design also makes it convenient for use in shared spaces, during travel or whenever fragrance is not desired.

Thin, Flexible and Easy to Use

Each sheet measures approximately 17.3 × 9 cm.

Its slim profile allows it to sit discreetly at the base of the neck without creating excessive bulk under clothing.

The sheet is designed to maintain close contact with the skin while remaining flexible enough to follow normal movement.

Air-Activated Heating

The heating element contains iron powder and begins generating warmth once the sealed individual package is opened.

No preheating is required.

Simply:

1. Open the individual package.
2. Peel away the release paper.
3. Attach the sheet directly to clean, dry skin at the base of the neck.
4. Enjoy approximately 30 minutes of steam warmth.
5. Remove and discard after use.

Convenient for Home and Travel

Because the sheet activates automatically and does not require electrical equipment, it can be used almost anywhere.

It is suitable for:

• Evening relaxation at home
• Reading
• Watching television
• After desk work
• After studying
• During travel
• On airplanes or trains
• Before bedtime

Each box contains 12 individually packed sheets, making it easy to carry single sheets separately in a handbag, overnight bag or travel pouch.

Single-Use Design

Each sheet is intended for one-time use only.

After the warming effect has finished, remove the sheet and discard it according to local waste-disposal rules.

The product is not reusable and should not be reheated.

Important Use Information

Apply the sheet only to clean, dry skin at the base of the neck.

Do not use on the face, around the eyes, mucous membranes, wounds, insect bites, irritated skin or areas with eczema or rash.

Do not apply over topical medicines or medicated patches.

Do not use while sleeping.

Stop use immediately if the heat feels excessively strong or uncomfortable.

People receiving medical treatment, people with diabetes or circulation disorders, people with reduced heat sensitivity, people with fever or inflammatory conditions, and pregnant users should consult a physician or pharmacist before use.

Product Features

• Disposable self-heating steam neck sheet
• Designed for the base of the neck
• Approx. 40°C comfortable steam warmth
• Approx. 30 minutes of warmth
• Feels similar to a warm steamed towel
• Thin and flexible sheet
• Designed to remain securely in place during movement
• Direct-to-skin application
• Unscented
• Air-activated
• No microwave required
• No batteries or electricity required
• Individually packaged
• 12 sheets per box
• Suitable for evening relaxation
• Convenient for travel
• Single-use design
• Made in Japan

Product Specifications

Product Name: MegRhythm Steam Neck Sheet Good Night
Type: Disposable Steam Heat Sheet
Contents: 12 Sheets
Recommended Area: Base of Neck
Scent: Unscented
Approx. Temperature: 40°C
Warmth Duration: Approx. 30 Minutes
Sheet Size: Approx. 17.3 × 9 cm
Skin-Side Material: Polypropylene, Polyethylene
Heat-Generating Material: Contains Iron Powder
Reusable: No
Microwaveable: No
Package Size: Approx. W125 × D84 × H137 mm
Weight: Approx. 157 g
Country of Origin: Japan