Abstract This paper focuses on juxtaposing between morning types and evening types in terms of their disposition towards sensations. The research is based on the hypothesis that evening types are more sensation seekers than morning types. This paper is based on a research that was carried out. In the research, a total number of 1243 participants filled in questionnaires on how they are likely to behave after waking depending on there sleeping times. The 1243 participants were students from a psychology class who were attending a seminar. The seminar leader used two questionnaires to collect data from the students, that is, the sensation scale and morningness and eveningness scale questionnaires. After collecting and analyzing the data, on the whole, the results highlight the comparison between evening types and morning types with regard to sensation seeking. Introduction Morningness-eveningness preference (circadian typology) can be considered one of the most marked individual differences in circadian rhythms, which is represented along a continuum between two extremes: morning types(sometimes labeled “larks” ) go to bed and awake early; evening types (sometimes labeled “owls” ) have later bedtime and wake up time and are tired when waking up (Tonneti et al, 2009). There greater chunk of the population are intermediate types i.e. they are moderate in their preference of excitement and search for sensational experiences (Tonneti et al, 2009). They are neither too inclined towards risky behavior nor are they people who shy off from challenge and thrill. Sensation-seeking, is a term used to refer to the inclination by individuals to seek out pleasurable moments or excitement in life. People with this trait, which is also known as excitement seeking trait, go an extra mile just to have fun and enjoy moments in their life. Such like people seek to experience and enjoy life not for any other reason but for the sake of the experience or fun in itself. According to Horvath and Zuckerman (1992) in there search for novel and intense sensation and experience, sensation seekers take various kinds of risks. They take physical risks in dangerous sports and vocations. They take physical and legal risks when they drive too fast, recklessly or while intoxicated (Horvath and Zuckerman, 1992). They volunteer for psychological experiments regarded as risky, tend to drink too heavily, they smoke thus accepting health risk. They tend to make bigger bets in gambling, associated with larger increases in arousal, and show a tendency to make risky financial investments (Horvath and Zuckerman, 1992). Their tendency to engage in varied sexual activities with a variety of partners puts them at greater risk for venereal diseases, including Autoimmune Deficiency Syndrome (AIDS) (Horvath and Zuckerman, 1992). High sensation seeking is a major trait of psychopaths who seem almost oblivious to the risks of their criminal activities, compared to non-psychopathic criminals. The big question would be to consider why some people are sensation seekers i.e. go for experiences against all odds while others are reserved and laid back. This could be explained by the possibility that excitement seekers find more value in activities and experien