12 constellation can't have sound because of light sleep.

People in the following constellations need a quiet environment when they sleep and can't tolerate any sound:

1. Taurus: Taurus people are usually very sensitive to sound, especially when sleeping. They need a quiet environment to ensure the quality of sleep, and any small sound may affect their sleep.

2. Cancer: Cancer people usually attach great importance to family and security. They need a completely quiet environment when they sleep to make them feel at ease. Any sound may disturb their sleep and make them feel uncomfortable.

3. Libra: Libra people are usually elegant, and they usually keep a sense of balance in their lives. When sleeping, they need a quiet environment to maintain this sense of balance, and any sound may break this balance and affect their sleep.

4. Capricorn: Capricorn people are usually very pragmatic and cautious. They need a quiet environment to ensure the quality of sleep, and any sound may break their attention and sleep.

5. Virgo: Virgo usually pays great attention to detail and perfection. They need a completely quiet environment when they sleep to ensure the quality of sleep. Any sound may break their best plan and affect their sleep.

In short, people in each constellation have their own unique personality characteristics and needs, which need our understanding and respect. Try to keep a quiet environment while sleeping to improve the quality and comfort of sleep.