Warm greetings from Grand Mandarin Singkawang. Thank you for staying and reviewing our hotel. For extrabeds, all are standard with thick foam material, different from the mattress used, regarding room service according to our SOP, last service is at 15.00 WIB. We apologize for the inconvenience of staying at our place. We look forward to welcoming you back to Grand Mandarin Singkawang. Warm Regards, Management