There are no hostels in Liptovsky Mikulas but there are other types of accommodations...

"Renovated house 7 km from Liptovsky Mikulas for 11 people. The house has 3 rooms (2x4 beds and 1x3 beds) and each room has a bathroom.
It's possilble to use kitchen and big cortis.
Advantage: price for person/night."
Direct bus from bus or train station cca every hour from Liptovsky Mikulas to Ziar (7-10 kilometres). Bus stop is called ´Ziar cintorin´ - is situated 100m from house.
Ziar 39, okres Liptovsky Mikulas, 032 05
Liptovsky Mikulas, Slovakia

"Clare and Dan are ex-backpackers who have set up in the beautiful undiscovered Tatra mountains of Slovakia.
This secret region of Europe the area is a beautiful valley, and Slovakias' outdoor activity centre, from alpine hiking in the High Tatras, downhill mountain biking, rafting, climbing, caving, quad-biking, horse riding, exploring ancient castlers, thru to lazy afternoons in the hot sun at the nearby lake.
In the winter we run our spacious converted house as a ski/board Chalet - we are...