Yes, it is possible to request a microwave at a hotel. Many hotels provide microwaves in their rooms or have them available upon request. To ensure that a microwave is available during your stay, it is recommended to contact the hotel directly either before your arrival or upon check-in. You can either call the hotel's front desk or send an email to their reservations or customer service department to make the request. They will be able to inform you of their policies regarding microwaves and assist you in arranging for one if it's available.