Do I need to bring my own sleeping bag?

No. Almost all European hostels strictly prohibit sleeping bags for hygiene reasons. You will be provided with sheets, though sometimes you have to make the bed yourself.

Is it safe to leave my laptop in a dorm?

Only if it is in a locked locker. If the hostel doesn't provide a locker, bring your valuables with you in a daypack at all times.

How do I ensure I get a bottom bunk?

Add a note to your booking requesting a bottom bunk for mobility reasons. It isn't guaranteed, but hostels are generally accommodating if you ask 48 hours before check-in.

Booking Hostels in Europe

Use Hostelworld or Booking.com to filter by rating, location, and social atmosphere. Always book at least 3 weeks in advance for popular cities and check the hostel's official website for potential member discounts.

Filter for what matters. Set your search filters to 'Rating 8.5+' and 'Guest capacity under 10' for dorms. Ignore photos and focus on the reviews—specifically look for mentions of 'cleanliness' and 'noise levels' from the last 3 months.
Check the location. Open Google Maps and cross-reference the hostel's address. You want to be within a 15-minute walk of a major train or metro station to save on transit costs and time.
Compare prices directly. Once you find a hostel, search for it on Google. If the official website offers the same bed for 5-10% less than the booking platform, book direct to avoid third-party service fees.
Confirm house rules. Check if linen is included in the price. Some European hostels charge a €5-€10 'towel and sheet' fee upon arrival if you don't book a 'premium' rate.

Do I need to bring my own sleeping bag?: No. Almost all European hostels strictly prohibit sleeping bags for hygiene reasons. You will be provided with sheets, though sometimes you have to make the bed yourself.
Is it safe to leave my laptop in a dorm?: Only if it is in a locked locker. If the hostel doesn't provide a locker, bring your valuables with you in a daypack at all times.
How do I ensure I get a bottom bunk?: Add a note to your booking requesting a bottom bunk for mobility reasons. It isn't guaranteed, but hostels are generally accommodating if you ask 48 hours before check-in.