MLX90614 does not enter sleep mode

Sensors Environmental
1

Hello,

I am implementing a wireless sensor using ESP8266 combined by MLX90614. programming is done by Arduino using the following code. I am trying to safe power by entering the sensor into sleep mode but it does not work. I wish someone can help me with this issue.

#include<ESP8266WiFi.h>
#include<Wire.h>
#include<SparkFunMLX90614.h>
#include<ThingSpeak.h>


unsigned long myChannelNumber = 1094646;
const char* myWriteAPIKey = "J75HUNJBTZ8TPGCH";
const char* ssid = "NETGEAR10";
const char* password = "samhassan2018";

IRTherm therm;

int fieldStart = 2;
int updatePeriod = 120;

WiFiClient client;


int objTemp;
int ambTemp;

void setup()
  {

  Serial.begin(9600);
  delay(500);

  Serial.println("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED)
    {
    delay(500);
    Serial.print(".");
    }
  Serial.println("");
  Serial.println("WiFi connected, IP address: ");
  Serial.println(WiFi.localIP());
  ThingSpeak.begin(client);
  therm.begin();
  therm.setUnit(TEMP_C);
  }
  
  void loop()
  {
    therm.wake();
    Serial.println("Awake");
     if (therm.read())
     {
     
     objTemp = therm.object();
     ThingSpeak.setField(fieldStart, objTemp);
     Serial.println("Temperature: ");
     Serial.println(objTemp);
     ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
     Serial.println("Data sent to ThingSpeak");
     Serial.print("Ambient = ");
     Serial.print(therm.ambient());
     Serial.println("*C");
     Serial.print("Object = ");
     Serial.print(therm.object());
     Serial.println("*C");
     }

     therm.sleep();
     delay(1000);

     ESP.deepSleep(120e6);
  }