
Red Knotty Cedar sleeping cabin 400 cm
Made in our own factory in the Netherlands
Sustainable wood types
Customization options
Op werkdagen bereikbaar van 09:00 tot 16:00
Eigen fabriek met showroom in Nederland in Nederland
Door klanten beoordeeld met een 4,8/5
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Turn your garden into a relaxing retreat with the Red Knotty Cedar 400cm Sleeping Cabin. Made from sustainable Red Knotty Cedar, this cabin offers comfort and a natural look, without much maintenance.
Designed to integrate seamlessly into any garden setting, this spacious sleeper cabin is equipped with both internal and external floor slats and offers a comfortable back rest. The distinctive vestibule with two additional seats creates the perfect place to change or cool down, increasing the functionality and enjoyment of your cabin experience.
Red Knotty Cedar: Synonym for superior quality
Red Knotty Cedar, known for its durability and weather resistance, is at the heart of our cabin construction, making it an attractive and long-lasting addition to your outdoor living space.
Customizable roof finish of your choice
Personalise your sleeper cabin with a range of roof finishing options, from classic shingles to a stylish EPDM designer roof, each designed to give your cabin a unique look.
Heating options for every preference
For the heating of the sleeping cabin we offer different stove options. Choose between a powerful electric stove, with or without app control, or a traditional wood-burning stove for an authentic experience.
Simple and flexible installation
Our sleeper cabin is delivered as a handy kit with clear instructions. An even and hardened surface is required for installation. Take advantage of our professional installation service for extra convenience.
Technical specifications:
- Length: 400 cm
- Diameter: 209 cm
- Porch: 45 cm
- Wood thickness: 39 mm
Included options:
- 1x Door with large window, magnetic closure and handles
- 1x Double bed of 160 cm
- 2x Storage cabinets, suitable for refrigerator and microwave
- 2x Comfortable benches with backrest
- 2x Comfortable porch chairs
- 1x Floor grille inside
- 1x Floor grille for the entrance hall
- 1x Coat rack
- 1x Cabin lighting with hood
- 1x Stove protection
- 2x Legs
- 3x stainless steel tension straps
- 1x Ventilation grid
Choose options

Frequently Asked Questions about Barrel Saunas
Happy Timber offers barrel saunas in Thermowood Spruce, modified Ayous and Red Knotty Cedar. Each wood type has its own unique advantages: Thermowood Spruce is thermally treated for extra durability and is moisture resistant; modified Ayous is lightweight, has excellent insulation properties and a smooth surface; Red Knotty Cedar is particularly popular for its natural resistance to rot and insects and provides a beautiful aesthetic finish with a pleasant scent.
Narvi heaters are designed for long-lasting use and efficiency. They are made of high-quality materials that ensure durability and are specifically designed to distribute heat evenly within the limited space of a barrel sauna. This ensures faster heating and a consistent temperature, which contributes to a pleasant sauna experience.
Customers can choose between traditional roof shingles, corten steel or a modern design roof with EPDM. Roof shingles are robust and offer a classic look for a low price, while EPDM is a seamless and durable solution that offers excellent protection against all weather conditions.
A designer roof with EPDM offers several advantages, including exceptional durability and weather resistance. EPDM is an elastomeric material that is resistant to UV radiation, ozone, and extreme temperatures, making it ideal for use in various climates. In addition, EPDM is easy to install and requires little maintenance, which contributes to a longer lifespan of the roof.
Yes, it is possible to purchase a barrel sauna from Happy Timber without a specific roof finish. This offers flexibility for customers who want to integrate the sauna under an existing roof or who want to design a roof solution themselves. This option can also be cost effective and give customers more control over the final appearance of their sauna.
Happy Timber offers extensive customization options for their barrel saunas, thanks to our own production facilities. This includes the choice between different types of windows, such as semi-circular or fully circular windows, and the option to configure a sauna with or without a vestibule. Customers can also indicate specific wishes such as the placement of the door, benches, type of stove, and the color and material of the interior finishes.
The vestibule offers several benefits, including extra space for relaxation before or after sauna use, a place to change, and it provides protection from cold air when entering or leaving the sauna, which helps to improve thermal efficiency . A possible disadvantage is that the vestibule can increase the overall cost and space required for the sauna, as well as the time required for installation.
Both semi-round and fully round windows add aesthetic value to the sauna due to their unique and attractive appearance. They let in natural light, which opens up the interior space and creates a connection with the outdoor environment. This can enrich the sauna experience by allowing users to enjoy the outdoor scenery while relaxing. The difference between the two is mainly aesthetic, with a fully circular window offering a more panoramic view.
Installation time for a barrel sauna varies depending on the complexity of the configuration chosen and whether additional customization options have been added. Standard models can usually be installed within a day, provided all preparations such as the foundation and power supply are arranged in advance. Complex designs or additions such as a vestibule or window can increase installation time.
The types of wood used in Happy Timber barrel saunas have excellent insulation properties. Thermowood Spruce has been thermally treated to improve its insulating ability, while Red Knotty Cedar is a naturally good insulator due to the air pockets within its cellular structure. Modified Ayous retains heat efficiently thanks to its dense structure after modification, contributing to an energy-efficient sauna experience.
Regular maintenance of a barrel sauna includes cleaning interior and exterior surfaces to prevent mold or mildew buildup, checking the wood for signs of wear or damage, and updating the wood treatment (oil or sealer) annually or as recommended from the manufacturer to maintain durability and appearance.
The energy efficiency of Happy Timber barrel saunas is increased by the use of naturally insulating wood types and efficient stove options. The compact shape of the barrel saunas minimizes heat loss, while the quality of construction ensures that no unnecessary energy is lost. The use of an EPDM roof further contributes to energy efficiency through excellent insulation.
Yes, Happy Timber barrel saunas are designed for use in all seasons. The materials and construction techniques used ensure that the saunas remain comfortable and functional in both summer and winter, allowing users to enjoy their sauna all year round, regardless of the outside temperatures.
The cylindrical shape of a barrel sauna not only offers a unique aesthetic appearance, but also has practical advantages. This shape allows for natural air circulation and efficient heat distribution within the sauna, which reduces heating time and promotes an even temperature throughout the room.
The choice between an electric stove and a wood stove depends on personal preference and practical considerations. Electric heaters offer convenience and control with thermostats for consistent temperatures, while wood heaters offer a traditional sauna experience with natural warmth and the distinctive aroma of burning wood, which many users find very relaxing.
ABOUT HAPPY TIMBER
We build your future pitch of relaxation and recovery.
At Happy Timber we forge relaxation and craftsmanship under one roof in Waardenburg. In our own factory we create your future oasis of peace with care and precision: authentic hot tubs and saunas. Each product is an example of quality and craftsmanship, designed to harmonize with every garden and every lifestyle. Experience the warmth of home, handmade in Waardenburg.