Want to say sleeplessness differently? Here are other words for sleeplessness and its similar synonyms and opposite words to say in unique way.
Meaning of sleeplessness
The state of being unable to sleep or having difficulty sleeping.
Etymology of sleeplessness
The word "sleeplessness" has its roots in the Old English words "slēp" meaning sleep and the suffix "-lessness" which forms a noun indicating a lack or absence of something, in this case, sleep.
 The term has been used in the English language since the 15th century to describe the state of being awake or having difficulty sleeping.
Synonyms
                                                insomnia
                                                                        wakefulness
                                                                        restlessness
                                                                        alertness
                                                                        vigilance
                                                                        watchfulness
                                                                        tiredness
                                                                        fatigue
                                                                        exhaustion
                                                                        drowsiness
                                                                        somnolence
                                                                        lethargy
                                                                        languor
                                                                        lassitude
                                                                        sluggishness
                                                                        torpor
                                                                        numbness
                                                                        heaviness
                                                                        grogginess
                                                                        fogginess
                                                                        haze
                                                                        blur
                                                                        confusion
                                                                        disorientation
                                                                        sleep deprivation
                                                                        wakefulness
                                                                        nocturnalness
                                                                        darkness
                                                                        shadows
                                                                        silence
                                                                        stillness
                                                                        quietness
                                                                        motionlessness
                                                                        stagnation
                                                                        inertia
                                                                        idleness
                                                                        inactivity.
                                                            
            Definitions
- The condition of being unable to sleep or having difficulty sleeping, especially when persistent.
- A state of wakefulness or alertness, especially at night, that prevents one from sleeping.
Usage Examples
- The patient suffered from sleeplessness due to chronic pain and discomfort.
- Sleeplessness can have significant effects on a person's physical and mental health.
- The doctor prescribed medication to help alleviate sleeplessness and promote a good night's sleep.
- Sleeplessness can be caused by a variety of factors, including stress, anxiety, and irregular sleep patterns.