Sticking computer keyboard keys can make writing an e-mail or a text document difficult. If the space bar on your Sony laptop isn't bouncing back the way it should, chances are that it is in need of a bit of cleaning. Even if you haven't spilt anything or if you don't eat around your laptop, years of dust and grime can build up in the nooks and crannies of your keyboard.
Shut down your laptop. Place your laptop under a bright work light. Look closely around the space bar for any obvious bits of debris that may be blocking the way. If you see something stuck in between the keys, use a pair of tweezers to remove it gently.
Use a compressed air canister to clean around and under the space bar. This blows away any out-of-sight foreign objects that may be blocking the movement of the key. If the key is still sticking, continue to Step 3.
Pop off the space bar using a flathead screwdriver. Though the space bar will be held on tightly, do not use excessive force. Apply steady pressure and be patient. Once the space bar comes off, clean the space within the keyboard frame. Use a cotton swab dipped in rubbing alcohol to wipe away any dirt and grime carefully. You do not want to soak the cotton swab; just a few drops will do. Once the space is clean, you can replace the space bar by pushing it back into place.