Nattwell® fabric is based on a natural fibre called MicroModal that is both soft on the skin and exceptionally ecological. The fibre is extracted from beech wood, a unique tree that has grown in Europe for thousands of years. MicroModal is produced using Edelweiss® technology, a production process that is low on energy usage and other resources. 

Thanks to extensive research the key has been found to enhance the properties of the MicroModal fibre, giving you Nattwell®—a breakthrough new fabric used in all Dagsmejan sleepwear. The natural moisture absorption properties of the fibre’s core remain unchanged, while the outer layer is adapted to make it water resistant and repel moisture. This gives Nattwell® fabric revolutionary moisture and temperature management properties.

Dagsmejan, Nattwell, best temperature for sleep, night sweats, no more sleepless night


Read more about the unique powers of Nattwell® fabric

Nattwell® fabric is made of cellulose, which is obtained from beech wood and formed into fibres. Other kinds of cellulose fibres include cotton, linen, bamboo and lyocell. A common feature among all cellulose fibres is there high moisture storage capacity. The fact that cellulose is able to store moisture in its interior explains cellulose’s excellent climate-regulation capacity and ability to moderate temperature fluctuations.

The capacity of synthetic fibres, such as polyester, polyamide or polypropylene to store moisture is far less than that of Nattwell®. Polyester for example is only able to store one-tenth the amount of moisture that Nattwell® fabric is able to, which explains synthetic polymers’ poor capacity for temperature regulation.

Conventional cellulose fibres absorb moisture very rapidly, which means they have very good wicking rates. If you drop a few droplets of water on cellulose material you will see that they are absorbed within a few moments. Cellulose fibres are therefore often used as wicking materials for clothing. However, since the water absorbed remains in the textile’s structure, a disadvantage of this high absorbency, is the speed at which we experience a wet, cold feeling when the fabric comes into contact with our skin. Synthetic materials are therefore often preferred for sportswear, since they dry faster and thus eliminate the cold feeling quicker. This benefit comes, however, at the expense of poor thermal control.

In Nattwell® fabric the cellulose fibre has been modified in such a way that the moisture storage capacity of the cellulose in the fibre’s interior remains unchanged and thus the ability to maintain climatic buffering is preserved. However, a layer has been created on the surface of the fibre’s cell, which transports moisture into the fibre’s moisture-absorbent storage zone. The fibres therefore constitute micro-composites, consisting of a cellulose core coated with a hydrophobic surface.

Nattwell® fabric thus combines two properties that have up until now not been seen in cellulose fibres:

  • Moisture released from the body is regulated and controlled in the textile structure by absorption and diffusion to the outside. These textiles are therefore very good at preventing changes to the temperature of the fabric.
  • During a phase in which we sweat, moisture can be passed first to a storage layer and then if necessary the fibre’s interior can act as a storage zone. This means that Nattwell® fabric can store up to 50% of its own weight in liquid while still feeling dry to touch.

These properties give Nattwell® fabric a unique combination of hydrophilic and hydrophobic functionalities. Properties which were once thought irreconcilable, i.e. moisture storage and moisture transport, have been successfully combined in Nattwell®.


By assessing our nightly temperature and sweat patterns, as well as sleep positions and movements, we have been able to design a unique range of clothing optimised for sleep. Dagsmejan sleepwear will keep you in the ideal climatic comfort zone for longer, helping to boost the duration and quality of your sleep.

Through extensive research, testing and knitting trials we have found a unique way to seamlessly integrate temperature and moisture-control zones in high-sweat areas supporting optimal temperature regulation and moisture wicking throughout the night. This type of technique has never been used with natural fibres before and allows us to offer the best of performance fibres in a totally natural way.

Sleep design Dagsmejan, keep the best temperature for sleep, beat night sweats