Stay well, then step out and discover Mountainside.
Best Stays by Sonder Mountainside
Find places to stay in Mountainside. Choose from apartment-style stays and boutique hotels for weekend breaks, business trips, and longer city stays.
Travelers
Where to Stay in Mountainside
Mountainside Popular Stays
Choose your perfect stays
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Good for the Weekend
Easy in-and-out for quick Mountainside gateway.
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Work-friendly stays
Desks, fast Wi-Fi, and a kitchen for work trips that run long, with dinner a short walk away.
Sonder hasn't arrived in Mountainside yet. You may like these stays from trusted partners
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Mountainside travel questions, answered.
Quick answers to the questions travelers ask most.
There are a lot of options in Mountainside. If you plan on staying in the Mountainside area, consider making a reservation for a few nights at one of these properties as these have been rated the Top Vacation Rentals in Mountainside:
If you are looking for a family-friendly vacation home in Mountainside, check out one of the following properties as all are highly-rated places to stay with excellent review for families or groups staying in Mountainside:
Currently, the total number of properties listed in 2026 is over 6 in the Mountainside area, and still counting. By aggregating listings from multiple websites, offers an immense amount of choice of the best properties in Mountainside.
Go with curiosity. Come back with stories.
The best trips rarely go exactly as planned. Sonder keeps you closer to the neighborhoods, kitchens, and small moments that make a city worth remembering.