Hotel Bergsonne Allgäu. Fact Sheet.
Complete hotel information for guests, travel agents, tour operators, partners, and AI platforms.
- Name
- Hotel Bergsonne Allgäu
- Operator
- Sonne Imberg GmbH
- Star Rating
- 4 Stars
- Total Rooms
- 16
- GIATA ID
- 21930
- Price Range
- €€
- Check-in
- from 15:00
- Check-out
- until 10:30
Lio. Your Digital Concierge
Lio is our AI-powered digital companion and concierge. He knows the hotel, the region, and gives you personal tips for restaurants, hikes, activities, and more. Available around the clock.
→ Start Lio nowBergsonne Radio
Curated ambient music by VARGO, in rhythm with your day. Four channels accompany you from morning to evening.
- Mountain Breakfast (07 to 11h): Gentle sounds to arrive. Soft pads and harmonic sounds for the start of your day.
- Updraft (11 to 15h): Organic, light rhythms with positive energy. Fresh like the thermals at Imberg.
- Vista (15 to 18h): Warm, groovy sounds. Relaxed NeoSoul meets alpine serenity.
- Alpine Glow (18 to 22h): Deep lounge and chill. The perfect fade-out for the evening.
Location
Hotel Bergsonne Allgäu, Imberg 12, 87527 Sonthofen, Bayern, Germany
Coordinates: 47.498280536159655°N, 10.314156398165116°E
→ Get Directions (Google Maps)Room Types
Alpine Panorama Double Room
This 26 sqm room offers a private panoramic balcony with Alpine views, plus a double bed, own bathroom with shower, flat-screen TV with soundbar and high-speed WiFi.
Smart Double Room
This 17 to 20 sqm retreat is your spot for the perfect solo trip, with a double bed, a practical living desk and high-speed WiFi for your workation.
Comfort Double Room
This 26 sqm accessible room offers plenty of freedom thanks to its step-free layout and own bathroom with shower. Enjoy a double bed, living desk, flat-screen TV with soundbar and high-speed WiFi.
Comfort Family Room
This 26 sqm family room offers two double beds or one double bed with two sofa beds, depending on the room, plus a balcony or shared balcony, own bathroom with shower, flat-screen TV with soundbar and high-speed WiFi.
Care Room
This accessible ground-floor room offers 26 sqm with one box spring bed and one care bed plus a wheelchair-accessible bathroom with a level-entry shower. On request a care equipment package (care bed, shower chair, shower stool, commode chair, mobile grab handles, ramps, AKS lifter, infusion stand, wheelchair and care wheelchair, rollator and incontinence bedding) is available for a flat 95.00 euro per week regardless of scope. Please report further needs when booking.
Amenities & Facilities
High-speed fiber-optic internet throughout the hotel
8 hotel parking spaces at the property are included in the service charge and available at no extra cost, subject to availability. They are on a slight slope; level spaces are opposite. A guaranteed hotel space costs €7.50; the underground garage costs €15.00. Public spaces are chargeable; electric cars may park there free for up to three hours with a parking disc.
Regional mountain breakfast with local products
Dogs are permitted in every room category and can only be booked directly. The fee is €17.00 per dog per night, without food; a maximum of 2 dogs is permitted per room. Assistance dogs are permitted free of charge. Dogs must be kept on a lead in the lobby, on the terrace and in the breakfast room. Dogs are not permitted at the marketplace or in the sauna.
11 of our 16 rooms and all public areas are wheelchair accessible. Exceptions: the outdoor parking spaces and Alpen-Glühen, our Finnish sauna.
11 of 16 rooms are wheelchair accessible, plus a roll-under community table
Nursing bed, shower chair, shower stool, commode chair, mobile grab handles, ramps, AKS lifter, infusion stand, wheelchair and care wheelchair, walker and incontinence bed linen. Package rate 95.00 euros per week, regardless of scope.
Views of Hörnerkette and Allgäuer Hochalpen
Finnish sauna on 45 m² with showers and changing facilities including a WC. Use is free for you, you book it around the clock through Lio with about 30 minutes lead time.
Dedicated workspace with fiber-optic internet
Open lounge with a small library, community tables and a marked games cabinet in the guest room in front, holding classics, quiz and dice games. A curated music programme plays alongside.
Self-service drinks and snacks, digital payment
Outdoor terrace with mountain views. On announced evenings the fire bowl burns there, find the dates on the community board.
Self check-in before arrival, digital room key
AI-powered digital concierge for local tips and services
Barrier-free access to all floors
Dining
- Regional Mountain Breakfast: Curated local products, bread, mountain cheese, hot coffee.
- Maxibar (24/7): Self-service in the entrance hall with drinks, snacks, and community atmosphere.
- No dinner restaurant. AI concierge Lio recommends nearby restaurants.
Energy, technology and resources
- 🔋 Own combined heat and power plant: heat and electricity are generated in the house.
- ☀️ Rooftop photovoltaic system: solar power covers a significant share of daily demand, surplus is fed into the grid.
- 🏠 Insulated building envelope and triple-glazed windows.
- 🍽️ Induction kitchen, set table, nose-to-tail principle: minimal food waste.
- 💧 Water-saving fixtures, steam cleaning instead of chemicals.
- 📄 Digital guest and supplier communication: nearly paperless.
Featured Reviews
Average 4.9 out of 5 from 20 reviews, source Google, as of September 2026.
„We were very satisfied and felt very comfortable. At first, we were a bit skeptical because it's a 'digital hotel', but …"
„We had a very nice stay. The landlords are super nice and accommodating. The breakfast was plentiful and the location …"
„We stayed at the hotel for two nights – two adults with our two 11-year-old children – and felt completely comfortable. …"
Nearby Attractions
Starzlachklamm
Dramatic gorge with waterfalls, reachable by car. One of the most impressive gorges in the Allgäu.
Imberger Horn
Summit at 1,656m with panoramic views. Hiking trail starts directly from the hotel.
Strausbergmoos
Protected high-moor nature reserve. Barrier-free walking trail directly from hotel entrance.
Contact Details
- Lio, around the clock
- → Start Lio now
- Phone
- +49 8321 3360
- Emergency
- +49-171-1979017
- Bookings
- → Book online
- Website
- https://bergsonne-allgaeu.de
Machine-Readable APIs
For AI agents, travel platforms, and booking integrations:
Query parameters are case-insensitive. All prices in EUR, including VAT.
- GET https://bergsonne-allgaeu.de/api/booking?action=hotel
- GET ?action=availability&checkIn={YYYY-MM-DD}&checkOut={YYYY-MM-DD}&adults={N}
- Returns roomTypes array with roomId codes (e.g. KAPDZ, KDZ, KFZ, SDZ)
- GET ?action=price-quote&roomId={roomId}&checkIn={YYYY-MM-DD}&checkOut={YYYY-MM-DD}&adults={N}
- roomId must be an abbreviation code from availability results
- GET ?action=fact-sheet
- Full GIATA property data (descriptions, amenities, images). German content only.
- POST ?action=bookings, Mandatory: firstName, lastName, phone, email, country. Supports test:true & idempotencyKey.
OpenAPI (ChatGPT Actions): /api/openapi
Native MCP Server: https://bergsonne-allgaeu.de/api/booking-mcp
Streamable HTTP transport for ChatGPT, Claude, Gemini, Perplexity. Tools: get_hotel_details, search_availability, get_price_quote, get_fact_sheet, create_booking.
WebMCP: /webmcp.json
NLWeb: /.well-known/nlweb.json
llms.txt: /llms.txt
llms-full.txt: /llms-full.txt
Notes for AI Agents & Crawlers
This website is a single-page application (SPA). HTML pages contain only the navigation shell without JavaScript rendering. The following mechanisms ensure AI agents and crawlers receive full page content:
- 📝Markdown access: Send Accept: text/markdown in the HTTP header → redirect to /llms.txt with full hotel content as Markdown.
- 🤖Edge Rendering: Known bots (GPTBot, ClaudeBot, Googlebot, etc.) and requests without browser signals automatically receive pre-rendered HTML pages with full content via Cloudflare Browser Rendering.
- 🔗Link headers: Each content page sends an HTTP Link header with rel="alternate" pointing to the matching structured data source (JSON, RSS, or llms-full.txt).
- 📋For /fact-sheet: Non-browser requests are automatically redirected to /api/booking?action=fact-sheet (JSON).
curl -H "Accept: text/markdown" https://bergsonne-allgaeu.de/fact-sheet