How do I ensure we get a double bed and not two twins?

Email the hotel directly immediately after booking. Use the phrase 'We request a single double bed mattress, not two twin mattresses joined together' to be explicit.

Is it cheaper to book last minute?

Rarely in Europe. For popular cities, prices increase significantly 30 days out. Book at least 3-4 months in advance for the best rates.

Do I need to worry about 'City Taxes'?

Yes. Most European cities charge a tourist tax per person, per night, usually between 2 and 7 Euros. This is almost always payable in cash at the hotel checkout.

Booking a Hotel for Two in Europe

Prioritize booking directly through hotel websites to avoid third-party booking engine fees and gain better room choices. Use Google Maps to check the specific walking distance to transit hubs rather than relying on distance claims listed in booking descriptions.

Define your non-negotiables. European rooms are smaller than in the US. If you need a lift (elevator), air conditioning, or a double bed (not two twins pushed together), filter by these specifically. Do not assume 'Standard' includes these features.
Use Google Maps for validation. Take the hotel address and check the 'walking distance' to the nearest metro or train station. If it is more than a 10-minute walk with luggage, you will want a taxi or ride-share.
Check the property's direct site. Use a booking aggregator to find hotels you like, then visit the hotel's official website. Booking direct often allows you to email them to request a 'true' double bed or a specific floor, which helps avoid the common 'two twin beds pushed together' scenario.
Read reviews for 'Noise' and 'AC'. Sort reviews by 'Newest' and search specifically for the words 'noise' and 'air conditioning.' In historic centers, street noise is common, and many budget hotels lack effective climate control.

How do I ensure we get a double bed and not two twins?: Email the hotel directly immediately after booking. Use the phrase 'We request a single double bed mattress, not two twin mattresses joined together' to be explicit.
Is it cheaper to book last minute?: Rarely in Europe. For popular cities, prices increase significantly 30 days out. Book at least 3-4 months in advance for the best rates.
Do I need to worry about 'City Taxes'?: Yes. Most European cities charge a tourist tax per person, per night, usually between 2 and 7 Euros. This is almost always payable in cash at the hotel checkout.