Even with limited space and equipment, you can still perform a variety of exercises in a room with just a bed. Here are some exercises that you can do:

1. Bodyweight exercises:

   – Push-ups: Place your hands on the edge of the bed and perform push-ups against the resistance of your bodyweight.

   – Squats: Stand facing away from the bed and lower your hips down as if you’re sitting back onto the bed, then stand back up.

   – Lunges: Stand facing away from the bed, take a step forward, and lower your back knee down towards the floor, then push back up to the starting position.

   – Planks: Position your forearms on the bed, with elbows under your shoulders, and hold a straight body position, engaging your core muscles.

1. Step-ups: Step up onto the bed using one leg at a time, then step back down. You can alternate legs or perform a set on one leg before switching.

1. Bed dips: Sit on the edge of the bed with your hands gripping the edge. Slide your hips off the bed and lower your body down by bending your elbows. Push back up to the starting position.

1. Mountain climbers: Assume a high plank position with your hands on the floor and your feet on the bed. Alternately bring your knees towards your chest in a running motion while maintaining a strong core.

1. Glute bridges: Lie on your back with your feet on the bed, knees bent. Push through your heels to lift your hips off the floor, creating a bridge with your body, then lower back down.

1. Leg raises: Lie on your back with your legs straight and raise them up towards the ceiling, then lower them back down without touching the floor.

1. Standing calf raises: Stand on the edge of the bed with your heels hanging off the edge. Rise up onto your toes, lifting your heels as high as you can, then lower them back down.

Remember to warm up before exercising and maintain proper form and technique to prevent injury. Adjust the number of repetitions and sets according to your fitness level and gradually increase intensity as you become stronger. It’s also important to listen to your body and take breaks or modify exercises as needed.

If possible, consider adding resistance bands or small weights to increase the challenge and variety of exercises. Additionally, incorporating cardiovascular exercises like jumping jacks, high knees, or jogging in place can help elevate your heart rate and add a cardio component to your workout.

As always, consult with a healthcare professional or certified fitness trainer if you have any specific concerns or limitations.