ATAMI Sekaie, a luxury resort in Atami, Shizuoka Prefecture, overlooking Sagami Bay, has begun offering a new "Sleep Retreat Plan" from September 3, 2026. Through items and experiences that support sleep during the stay, the plan is designed to gently rest body and mind and lead guests toward comfortable sleep.
A Stay That Rests Body and Mind, Toward Sleep That Satisfies the Senses
With the wide expanse of Sagami Bay and open sky right in front of the property, guests can soak in a natural hot spring while looking out at the sea, enjoy seasonal flavors and settle into a quiet night. Within this setting, ATAMI Sekaie has launched the "Sleep Retreat Plan" to rest body and mind and guide guests toward comfortable sleep.
The plan brings together Japanese cuisine created specially for the plan using seasonal ingredients, the warmth of a natural hot spring, calming scents and comfort against the skin, so that guests can feel at ease through all five senses, from dinner through to sleep. In addition to the plan-limited Japanese cuisine, the plan incorporates products from TENTIAL, a company that develops items supporting sleep and everyday conditioning, to help guests toward a more comfortable night's rest. Guests can step away from daily noise and enjoy a stay in Atami, surrounded by sea and sky, that values the act of sleeping itself.
The Sleep Retreat Plan
Alongside special experiences available only with the plan, the stay also includes guidance on bathing methods that lead to more comfortable sleep, among other proposals to support restful sleep throughout the visit.
Three TENTIAL Sleep Items
- BAKUNE MAKURA, a pillow that supports an ideal sleeping posture
- Aroma mist made with 100% natural essential oils, formulated for sleep
- BAKUNE Pajamas Dry, recovery wear designed based on sleep science (guests may take this home)
BAKUNE MAKURA is a semi-personalized pillow that can be adjusted to the height that suits each guest. An adjustment sheet allows the height to be fine-tuned from 5 to 10 centimeters, supporting comfortable sleep suited to individual body type and preference. Its wide, roughly 70-centimeter design encourages natural turning during sleep, easing strain on the neck and shoulders while guiding guests toward more comfortable rest.
A Plan-Limited Japanese-Cuisine Dinner
At the Japanese restaurant Tsukushi, the plan offers a course built around dishes that gently satisfy from within, including a hot-pot dish rich with umami made with local Ise spiny lobster and grated jinenjo, a nutrient-rich wild yam grown in Shizuoka Prefecture.
Morning Yoga to Start the Day (Optional)
ATAMI Sekaie holds morning yoga every day, letting guests feel the open sky and the energy of the sun while bringing body and mind into balance. Guests can enjoy a session of slowly loosening the body with deep breathing, for a refreshing start to the day and a comfortable wake-up. Participation is optional.
Personal Conditioning (Optional, Selectable by Plan)
An original personal conditioning session is available, tailored to posture, movement and daily habits. Based on a counseling session, the body is conditioned to match how guests feel that day, guiding them toward a healthy, light sensation.
Plan Details
Plan: Sleep Retreat Plan
Sales period: For stays from Monday, September 14, 2026
Price: From ¥142,780 per room for two guests, one night with two meals (tax and service charge included; hot-spring tax and accommodation tax not included)
Includes:
- Loan of TENTIAL's BAKUNE MAKURA pillow and aroma mist
- One BAKUNE Pajamas Dry per adult guest, to keep
- A plan-limited dinner and Japanese-cuisine breakfast (two meals)
- Check-in at 2:00 PM (normally 3:00 PM) / check-out at 12:00 PM (normally 11:00 AM)
- Optional 60-minute personal conditioning session, selectable by plan
Reservations (sales are open for stays from Monday, September 14, 2026):
- Sleep Retreat Plan: https://go-kpgluxuryhotels.reservation.jp/ja/hotels/atamisekaie/plans/10201982
- Sleep Retreat Plan (with Conditioning): https://go-kpgluxuryhotels.reservation.jp/ja/hotels/atamisekaie/plans/10202155
About ATAMI Sekaie
Overlooking Sagami Bay, ATAMI Sekaie features an open-air bath fed by a continuous flow of natural hot-spring water from the Izusan hot springs in every guest room, letting guests soak while watching the sea's ever-changing expression. Alongside cuisine that makes use of seasonal ingredients, the resort offers a range of programs to keep body and mind in good condition, including personalized food for fasting or low-carbohydrate diets, and conditioning sessions. Through its scenery, hot springs, cuisine and wellness offerings, ATAMI Sekaie provides a restorative stay.
Address: 269-1 Izusan, Atami City, Shizuoka Prefecture 413-0002 (free shuttle service available from Atami Station)
Guest rooms: 25 rooms across six room types, ranging from 48 to 147 square meters
Guest room example
Source-fed hot spring bath in a guest room
Morning view from the lobby
