Of course Finland has its share of hotels, but it has more than its share of unusual hotels and unique places to sleep.
For example, there is the Arctic Treehouse Hotel in the city of Rovaniemi, the administrative capital and commerce centre of Lapland which is the northernmost province in Finland. It is approximately 6 kilometres south of the Arctic Circle and is considered by Finns to be the official home town of Santa Clause. A huge number of visitors to Rovaniemi are there with the hopes of seeing the Aurora Borealis, or "Northern Lights." There is a good chance their hopes will be realized because in Lapland, there can be as many as 200 occurrences of the Northern Lights a year, as opposed to southern Finland which is usually fewer than 20 appearances of the breathtaking phenomena. The Arctic Treehouse Hotel is built so that the windows, which take up the entire wall, provide spectacular views of the forest as well as the arctic sky and Northern Lights when they occur. Aside from the panorama, each room has its own private sauna. The rooms are rustic in their interiors and are small and "nestlike," and several of them are suites.
The northern village of Saariselka is home to the Kakslauttanen Arctic Resort which offers glass igloos which have as their walls and their roofs glass domes. From inside the igloos, the Northern Lights are fully visible and the visitors don't have to go outside in the snow in order to enjoy the sights.
The Wilderness Hotel Muotka in situated in Sodankyla, which is in the Lapland region. The accommodations there are a mixture of yurt, tent, and igloo, and each unit has a private sauna, and heated windows which melt the snow that would otherwise obscure the view.
As mentioned above, there are conventional hotels, cottages, and luxury villas throughout Finland, but the extensive range of places to stay is striking.
 
 
Recommended Resources
Briefs the reader about the Hotel Anna, in Helsinki. There are descriptions and photographs of each type of room they rent, along with detains such as what items are included such as television, hairdryer, and shower or bathtub. Also lists the square metres of each of them, and maximum occupancy. There are also photos and details about the common areas: the breakfast room, parking area, sauna, and meeting room. The site also contains a map of the area and contact information for the hotel.
https://www.hotelanna.fi/en/?lang=en
Maintained by the Klaus K Hotel, this web site presents its history and Finnish folklore theme and points out many of the decor including a large mosaic, the ovate shape of many items including the reception desk, and the genesis of the names of the hotel's four original rooms: Passion, Mystical, Desire, and Envy. The onsite Italian restaurant is described and hours of operation listed. It also describes its 171 different rooms with accompanying photos.
https://www.klauskhotel.com
Radisson's Helsinki hotel, located minutes from the city center, is the focus of this site. The Bistro Gimis, a Finnish restaurant which is attached to the hotel, and Seaside's Super Breakfast are both described and each has a photo gallery. Their seven types of rooms-- Standard, Superior, Unique Double King, Business Class, One Bedroom Suite, Seaside Suite, and Movie & Entertainment -- described. There is also a section which presents discount packages, offers, and campaigns.
https://www.radissonblu.com/en/seasidehotel-helsinki