Catch up TV

This episode is currently not available.

Series 2: 6. Sleeping Bag and Mattress



It's bedtime and Maddie is finding out about different things we sleep on and in! At a campsite she uses a special thermal camera to show how the layers in a sleeping bag work by trapping warm air inside to keep us warm. Next, Maddie visits a mattress factory to see how a mattress is made from layers of foam and material, a bit like a giant sandwich! She uses a special camera to see the tiny holes in the sponge that make the mattress nice and soft for us to lie on.

Source: CBeebies

Most recent episodes of Do You Know?

Do You Know?

Do You Know? - Series 4: 12. Window Cleaning Cradle And Shadow

Series 4: 12. Window Cleaning Cradle And Shadow

Maddie heads to a tall building to find out how a window cleaning cradle works. She discovers how really strong metal cables lift and lower the cradle, which uses tracks to move ...

29-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 4: 11. Snail And Tractor

Series 4: 11. Snail And Tractor

Today, Maddie learns about how different things move! She is heading to a snail garden to see how a snail uses mucus and the muscles in its body, called its foot, to move. Maddi ...

28-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 4: 10. Glass Recycling And Jam

Series 4: 10. Glass Recycling And Jam

In today’s episode, Maddie is learning all about glass! She visits a glass recycling centre to see how the glass from our homes is recycled. When the glass arrives to the ...

27-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 4: 9. Road Sweeper And Paper Straw

Series 4: 9. Road Sweeper And Paper Straw

In today’s episode, Maddie is finding out about machines that use suction! She heads to a road sweeper depot to learn how all the parts of a road sweeper work together, c ...

26-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Maddie's Do You Know: At Christmas: 1. Reindeer And Christmas Decorations

Maddie's Do You Know: At Christmas: 1. Reindeer And Christmas Decorations

Maddie goes on a Christmas adventure as she meets Santa's favourite helper, the reindeer, and discovers how Christmas decorations are made. She learns how reindeer keep warm in ...

25-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 4: 8. Floating And Sand

Series 4: 8. Floating And Sand

Today, Maddie’s at sea! First she visits a boating lake, using her special underwater cameras to find out how the hull of a boat is shaped to help it float on water. She l ...

22-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 4: 7. Bike Bell And Line Markings

Series 4: 7. Bike Bell And Line Markings

Today, Maddie is on her bike! She visits a bike workshop to find out why different bike bells make different ringing sounds. Maddie uses her special slow-motion camera to see in ...

21-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 4: 6. Radio Telescope And Maze

Series 4: 6. Radio Telescope And Maze

Today, Maddie is finding things! First, she visits an observatory to see how a really big radio telescope uses powerful computers to collect radio waves from space and turn them ...

20-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 4: 5. Drinking Water And Carrot

Series 4: 5. Drinking Water And Carrot

In this episode, Maddie visits a reservoir that collects water from our homes, natural springs and the rain. She heads to a draw-off tower, which takes water from the reservoir ...

19-12-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 4: 4. Hula Hoop And Tent

Series 4: 4. Hula Hoop And Tent

Maddie is playing outdoors. She finds out how we move our bodies to keep a hula hoop up in the air and learns how a hula hoop uses something called centripetal force to keep it ...

18-12-2023

CBeebies

All episodes

CBeebies

Most popular episodes of Do You Know?

Do You Know?

Do You Know? - Series 1: 1. Hamster Wheel And Insect Hotel

Series 1: 1. Hamster Wheel And Insect Hotel

Maddie meets some furry friends and creepy crawlies. She visits a pet shop and uses a special night-vision camera to find out how a hamster wheel works and how far a hamster can ...

04-04-2022

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 10. Water Park And Ice Cream

Series 1: 10. Water Park And Ice Cream

Maddie goes for a fun day out. She visits an indoor water park and uses a special waterproof camera and animation to show how a water slide works. She then goes underneath the s ...

12-04-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 25. Cake And Soft Play

Series 1: 25. Cake And Soft Play

Maddie is getting ready for a party. She uses a special camera and animation to find out how cake ingredients work together to make cake sponges rise in the oven. Next, Maddie v ...

03-05-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 2. Fire Engine Hose And Reflective Strips

Series 1: 2. Fire Engine Hose And Reflective Strips

Maddie looks at the emergency services. She uses a special camera to find out how the hose on a fire engine works and how the pump inside the fire engine creates pressure and se ...

03-04-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 16. Posting A Letter And Colouring Pencils

Series 2: 16. Posting A Letter And Colouring Pencils

In today's episode, Maddie is sending a letter in the post to the CBeebies house. She finds out how posting a letter works as she follows the letter's journey from the post box ...

30-05-2022

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 21. Magnets And Teddy Bears

Series 1: 21. Magnets And Teddy Bears

Maddie is looking at toys. She uses a special slow-motion camera to find out how the magnets on a train set work. An animation shows how the north and south poles on magnets wor ...

27-04-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 17. Piano And Drums

Series 1: 17. Piano And Drums

Maddie looks at musical instruments. She uses a special slow-motion camera to find out how a piano works and how the keys on the piano are attached to levers and hammers. She sh ...

21-04-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 2: 23. Prosthetic Limb And Detection Dog

Series 2: 23. Prosthetic Limb And Detection Dog

In today's episode, Maddie is looking at the way things are made or trained to help us. First, she meets seven-year-old Anu, who uses a prosthetic leg. Maddie visits a workshop ...

08-06-2022

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 19. Dishwasher And Table

Series 1: 19. Dishwasher And Table

Maddie is in the kitchen. She uses a special waterproof camera to see how the dishwasher works to clean dirty dishes. An animation shows what happens inside once the door is clo ...

25-04-2023

CBeebies

All episodes

CBeebies

Do You Know?

Do You Know? - Series 1: 11. Popcorn And Pasta

Series 1: 11. Popcorn And Pasta

Maddie explores some favourite foods. She uses a special slow-motion camera to find out why popcorn pops. An animation shows what popcorn is made of and how a water droplet hidd ...

13-04-2023

CBeebies

All episodes

CBeebies

© 2024 - Catchupplayer.co.uk